Registry and junk-clearing utility for keeping your system clean and optimized

CCleaner

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Download CCleaner 6.01

  -  47.3 MB  -  Freeware

What's new in this version:

CCleaner 6.01
Helping you to keep your PC running fast and smooth:
- We’ve rectified the Driver Updater badge counter so it no longer shows the wrong number of drivers to update in some cases
- We’ve made many quality-of-life improvements to Performance Optimizer:
- We’ve optimized its own performance to use fewer resources
- We’ve added a notification for  made it more obvious when an app requires a restart before it can enter or leave Sleep Mode
- We’ve made some wording clearer
- We’ve fixed some visual bugs
- We’ve fixed an issue that occurred when switching from non-admin to admin in Windows
- We’ve added better error reporting so our engineers can fix issues more quickly

Expanding our cleaning:
- We've added cleaning for Microsoft Store installations of:
- Amazon Music, iTunes & Spotify
- Netflix, Disney+ & VLC Media Player
- WhatsApp
- Microsoft To Do
- Raw Image Extension
- Trio Office

Taking the hassle out of PC maintenance:
- We fixed an issue where CCleaner took a long time to load if you have large driver backup files present
- Software Updater now supports an additional 30 applications; including OpenOffice, Plex Media - Player and CPU-Z
- Request more apps for Software Updater at ideas.ccleaner.com

Simplifying the app:
- New caret arrows in Driver Updater show that driver categories can be expanded
- The Account menu, where you can manage your license and start a free trial, is now easier to find

Keeping you safe:
- As part of our continued commitment to security, we’ve made various minor security improvements based on testing (penetration testing, static code analysis)
- Updates like these are typical, preventative measures taken by all good software companies
- One such example is that we've upgraded the version of OpenSSL we use for secure data transfer to the latest one (1.1.1o)

Note about CCleaner Portable:
- We have paused releases of CCleaner Portable while we resolve a compatibility issue. We hope to have this resolved soon.


CCleaner 6.0
Helping you to keep your PC running fast and smooth:
- Added a new Performance Optimizer feature
- Scans for apps that run in the background
- Allows you to sleep apps that aren’t needed, reducing system load
- Keeps apps asleep while not in use
- Wakes apps up safely when needed by you or another application
- Contains a guide and FAQ section
- We fixed some bugs found during our feature preview test phase

Expanding our cleaning:
- Added cleaning of Windows Software Distribution logs
- Added optional cleaning of Google programs backup files
- Added optional cleaning of Apple programs backup files
- Added optional cleaning of Steam backup files
- Improved cleaning of Safari internet history
- Improved cleaning of Chromium internet cache (JS files)

Taking the hassle out of PC maintenance:
- We’ve added 50 new apps to our Software Updater!
- More to come this summer
- Request an app at ideas.ccleaner.com

Simplifying the app:
- Added a helpful ‘Paste’ button into the License Key screen
- Improved Account Menu display for high-DPI screens
- Made some license registration errors more understandable
- To avoid mishaps, CCleaner will always be installed to a /CCleaner/ folder

Making the app inclusive (Accessibility):
- Our new Performance Optimizer feature has full support for NVDA screen reader
- The Account Manager menu now works better with NVDA screen reader

Keeping you safe:
- As part of our continued commitment to security, we’ve made various minor security improvements based on testing (penetration testing, static code analysis).
- Updates like these are typical, preventative measures taken by all good software companies.


CCleaner 5.92
Expanding our cleaning:
- We added cleaning of bookmark backups in Edge and Firefox
- We expanded our Google Chrome ‘Metrics Temp Files’ rule to include Setup Metrics
- We’ve renamed the ‘Windows SubSystems Temp Files’ rule to “Network Data Usage” to make it clearer that this rule removes historical, statistical data about your network usage.

Helping you to keep your PC running smoothly:
- We have released a preview of our new Performance Optimizer feature to a small number of users for their feedback
- This new feature is not yet suitable for users of assistive technologies, but will be when fully released
- We expect to make it available to everyone very soon! :-)


CCleaner 5.91
Maintaining cleaning reliability:
- We’re now cleaning Google syndication cookies fully in Google Chrome

Making CCleaner easy to use:
- We’ve created a new way to register a license key in the product (find it in ‘Options’ > ‘License Key’)
- We’ve improved the design of the screen to make it simpler to register your CCleaner license key
- You’ll now see a more helpful message if something goes wrong
- Finally, we have an improved screen where you can review and manage your license

Keeping the app running smoothly:
- We addressed a bug that was causing the ‘Save to Text File’ action in the Uninstall tool to add unwanted whitespace, making it copy-paste-unfriendly for spreadsheets
- CCleaner no longer crashes when importing cookies from a text file (‘Cookies to Keep’ right-click menu)


CCleaner 5.90
Expanding our cleaning:
- Added new temp file cleaning for Chrome User Data
- Added new temp file cleaning for various Windows system components
- Added new temp file cleaning for Microsoft Photos app
- Fixed a bug in cleaning for Windows Game Explorer

Even more reliable driver updating:
- Since its release in July 2021, we have put a lot of focus on minimizing the possibility of errors when using Driver Updater
- This release includes two new safety features in our proprietary technology, which reduce the likelihood of problems occurring
- Driver Updater is a feature of our premium CCleaner Professional product
- You can check for available updates for free, but you get updates you need to either upgrade or start a free trial

New! Automatic language detection on install:
- Some of you told us that you uninstalled CCleaner because it doesn’t have translations when, in fact, we support over 60 languages!
- To remedy this, when you first install CCleaner, it will intelligently start up in a suitable language based on your system settings
- This only affects completely fresh installations (over-the-top installs do not modify language settings)
- You can change your language setting inside the app ‘Options’ > ‘Settings’


CCleaner 5.89
Better cleaning:
- We are cleaning Chromium browser cookies again, after a change to where Chromium stores them. This affects all Chromium browsers, e.g. CCleaner Browser, Google Chrome, Microsoft Edge, Brave, Vivaldi, Opera and Yandex.
- We've added support for cleaning Firefox where it’s installed via the Microsoft Store. Every app installed via the Microsoft Store saves to a new location, so we will be working our way through other popular apps on the Store to ensure that CCleaner is able to clean them.

Improved technology:
- We have upgraded CCleaner to use C++ 20. This allows us to work more efficiently and deliver app improvements more quickly.


CCleaner 5.88
Better driver updating:
- We've made some improvements to how Driver Updater searches for driver updates for you
- We fixed an issue where the update counter on the Driver Updater icon was not updating correctly

Improved accessibility support:
- We’ve improved navigation the ‘upgrade’ screen if you use NVDA screen reader

Fixed:
- We fixed a bug in Health Check that was hiding the ‘Back to Overview’ button once you clicked on the icons for ‘Privacy,’ ‘Space,’ and others for more detailed information
- We fixed a bug where you might get asked for admin permissions to run CCleaner (even if you’ve already granted them)
- We fixed a bug where a ccleaner.ini file gets created incorrectly


CCleaner 5.87
Better cleaning:
- We’ve improved Microsoft Edge Chromium cache cleaning
- We’ve added new cleaning for Windows Event Trace Log (ETL) files

A more helpful Driver Updater:
- The feature icon now tells you when there are driver updates available
- We’ve fixed an issue that meant that some drivers would not update on the first attempt
- We've fixed visual bugs that occur on high DPI screens or high zoom settings
- Long driver names now display correctly in the app

Easier subscription management:
- We've added a new menu where you can manage your CCleaner subscription and discover other CCleaner products

Additional bug fixes:
- We've fixed an issue in Software Updater where some 32-bit software was incorrectly claiming updates were available
- We've fixed some non-English display issues in Health Check


CCleaner 5.86
Fixed:
- We’ve fixed a bug where cleaning and update notifications were interrupting fullscreen applications
- Note: a notifications bug remains for users of Razor Cortex - we’re in contact with Razor and a fix is in progress
- We’ve made improvements to Smart Cleaning notifications to make them easier to understand
- We’ve updated some text in Health Check to reduce confusion
- We’ve fixed a bug where using a VPN connection would show certain parts of Health Check as ‘offline’
- We’ve fixed a bug in the icon menu that was hiding the ‘Exit’ button beneath the Taskbar
- We’ve fixed some Chinese character display issues in Health Check
- We’ve improved how assistive technology reads out your current position in a list, in non-English languages
- We’ve fixed some drivers thinking they were born in the 1970


CCleaner 5.85
Managing notifications:
- We’ve made it easier to switch off a Smart Cleaning alert if you don’t find it helpful

Keeping your drivers updated:
- CCleaner now automatically scans for new drivers once per week
- To reduce confusion caused by different vendors’ version numbering, drivers now display date published instead of version (the version info is still in the Driver Details screen)
- Small accessibility and usability improvements

Getting started with CCleaner:
- We’ve added a short intro to the product to give newcomers a bit of guidance

Smoother CCleaner experience :
- We’ve fixed a crash that occurs when we try to clean Firefox that was installed with a non-admin Windows user account
- We’ve added a warning when trying to register the paid product while not logged into an administrator account


CCleaner 5.84
Improving your CCleaner experience:
- Smart Clean no longer prompts you to clean certain browsers if they are closed via an automated process (addresses some ‘ghost’ cleaning notifications)
- We’ve made it even simpler to use Health Check in subsequent visits to CCleaner

Driver Updater:
- We’ve made it easier for you to know which drivers to revert if an update causes a problem
- This new revert flow will also help us to understand where improvements to driver compatibility is most needed

General:
- The PC info section now detects Windows 11 correctly
- An indicator in the app now tells you when your subscription is nearing expiry
- Fixed some uncommon bugs in license registration
- Fixed some Chinese character display issues


CCleaner 5.83
Improvements:
- New support for Windows 10 Snip & Sketch temporary files
- Improved cleaning of Microsoft OneDrive logs

Driver Updater:
- Improved error handling messages and options
- Fixed a bug where driver categories were not displaying correctly
- Fixed a bug causing UI issues when navigating between tabs
- Fixed a bug causing the program to hang when scanning for drivers to update


CCleaner 5.82
New PRO Feature - Driver Updater:
- Our mission at CCleaner is to make our customers’ lives easier by simplifying their relationship with digital technology. Today, we’re bringing safe and reliable driver updates to CCleaner Professional, with no need to break the bank on an additional app. Our new Driver Updater finds more drivers than built-in solutions, saves you time and stress from having to find drivers on the web, and delivers drivers that are safe and reliable. Improve media performance, reduce crashes and bugs, and enjoy a better PC experience today!


CCleaner 5.81
Health Check:
- Fixed a crash if using Health Check without an internet connection

Driver Updater Beta:
- Released to a limited group for initial feedback
- You can use the ‘Give Feedback’ button within the feature to share your thoughts
- Not yet suitable for users of assistive technologies (it will be when fully released)
- We expect to make it available to everyone very soon! :)

General:
- Minor bug fixes
- Minor UI improvements


CCleaner 5.80
Disk Analyzer:
- Fixed a bug where files were not shown when viewing scan results by file type

General:
- Minor improvements to Trial experience


CCleaner 5.79
Cleaning:
- Added new cleaning of Slack cache (this optional setting does not wipe message history)
- We have re-enabled the ‘Wipe Free Space’ feature with new diagnostics information to catch a bug that was reported but not reproduced in our thorough testing
- We have added optional debug logging to try to catch a rare ‘rule duplication’ bug

Security:
- We fixed some instances where the app was using HTTP instead of HTTPS


CCleaner 5.78
Cleaning Settings:
- Restored support for local domains to the ‘Cookies To Keep’ whitelist (e.g. ‘localhost’, ‘desktop2’)
- We have disabled the ‘Wipe Free Space’ feature while we investigate reports of erroneous data erasure

Cleaning Automation:
- You can now choose to use standard cleaning rules or Custom Clean for scheduled cleans
- Fixed a bug where unchecking Smart Cleaning did not uncheck its child options

New Onboarding Flow:
- We've added a new quick start guide called Help Hub that is active during a trial for some users (currently EN only)

Accessibility:
- The new CCleaner onboarding experience fully supports NVDA screen reader and meets WCAG AA requirements
- Tab navigation order through different sections of the app window is now more consistent
- Improved Search Field labelling for NVDA
- Fixed an issue where Disk Analyzer would hang at the end of analysis if NVDA was running


CCleaner 5.77
This version includes improvements to cleaning and improved visual design for product updates

Cleaning:
- Added Download History cleaning for Avast Secure Browser

Updates:
- Updated the visual design of the product update sequence
- Fixed a bug where the system tray icon was displaying when it shouldn’t
- Fixed a rare bug where Update Notifications would be shown when they shouldn’t

General:
- Improved support for screen readers in the purchase flow
- Fixed a bug where the license information could be reset and lost


CCleaner 5.76
- Change log not available for this version


CCleaner 5.75
-This version includes improvements to cleaning, stability, and usability

Cleaning:
- The ‘Cookies to Keep’ list can now import any text file (‘Options’ → ‘Updates’)
- Chrome Beta cleaning has been restored

General:
- We fixed a silent crash when closing CCleaner
- We’ve made it clearer how Smart Cleaning settings interact with each other
- We’ve added a note to explain that Smart Cleaning uses the Custom Clean settings
- We’ve improved the wording of ‘Run CCleaner at startup’ to ‘Launch CC app windows each time the computer starts’
- The language list now lists languages in their native tongue (‘Options’ → ‘Settings’ )
- We’ve fixed some text translations throughout the app


CCleaner 5.74
- This version comes jam-packed full of exciting improvements for all our users

Cleaning:
- This release contains an essential session cleaning compatibility update for Chromium browsers such as CCleaner Browser, Google Chrome, Edge, Brave, Opera, Opera GX, Avast Secure Browser and Vivaldi

Automatic Updates:
- Updates to CCleaner will now be applied automatically in CCleaner Free
- You can review your Update Preferences in the ‘Options’ → ‘Updates’ menu
- If automatic updates are enabled, CCleaner will run in the background and check for them twice daily (if you run CCleaner it will always check for an update first)

Update Preferences:
- We have simplified the ‘Options’ → ‘Updates’ menu down to two settings: one for controlling automatic updates and another for controlling update notifications

CCleaner Professional:
- If your license has expired, we will occasionally show you a reminder when you run CCleaner

General:
- We fixed a bug where text in warning message boxes was highlighted


CCleaner 5.73
- This release brings a design update that makes it easier to see the status of your CCleaner Professional license in the app. We’ve also made it easier to renew your license and reactivate it.

License Management:
- The status of a CCleaner license is now clearer in the UI
- Disabled or expired licenses can now be reactivated from the app

Accessibility:
- Improved screen reader navigation on the Cookies, Registry & Users screens


CCleaner 5.72
- This release brings many improvements to accessibility in CCleaner and also a cleaning fix in Firefox

Cleaning:
- Fixed Saved Passwords not being cleaned in Firefox v80

Accessibility:
- Greatly improved support for NVDA and JAWS screen readers so that people with visual impairment who use assistive technology can navigate quickly and intuitively through the app
- Updated color contrast throughout the user interface to make text, icons, and buttons more readable for people with color vision deficiency
- Fixed certain message boxes not having focus when they appear


CCleaner 5.71
- The update includes cleaning improvements to Spotify and Firefox cleaning and all users can now opt out of offers for other products

Cleaning:
- Firefox internet cache cleaning now includes startup cache
- New! Added cleaning for Spotify to clean cached songs (but not your saved songs for offline use)

Privacy Settings:
- All users can now opt out of offers for other products


CCleaner 5.70
Important information for Firefox users:
- If you use Firefox with a Firefox account, we strongly recommend that you update CCleaner to version 5.70 before cleaning. This version of CCleaner fixes an issue that can cause extension settings to be lost in Firefox.
- The update also includes performance improvements and improved support for Opera GX

Important fix for Firefox users:
- Fixed a bug where CCleaner could wipe extension settings in Firefox if using a Firefox account

Cleaning:
- Added Smart Clean support for Opera GX
- CCleaner now differentiates between Opera and Opera GX processes
- Fixed a rare bug where Health Check would not close all selected browsers

General:
- Fixed a performance issue where CCleaner could use more CPU than it needed
- DetectOS syntax correctly supports full Windows build numbers in WinApp2


CCleaner 5.69
This version of CCleaner brings all-new cleaning for Opera GX browser and bug fixes:
Cleaning:
- Added cleaning support for Opera GX gaming browser

General:
- Minor UI improvements
- Fixed DetectOS from|to syntax functionality in WinApp2
- Fixed occasional missing information in the Licence Information screen


CCleaner 5.68
- This version of CCleaner brings improved cleaning to Firefox and Chromium browsers

Cleaning:
- Fixed browser extensions not being shown in Firefox and Chrome
- Fixed cleaning of ‘Last Download Location’ in Chromium browsers

Health Check:
- Users can now provide a comment with their rating

Software Updater:
- Software Updater displays a message when offline and a ‘Try Again’ button


CCleaner 5.67
- This version of CCleaner brings more cleaning to Firefox, improvements in the delivery of our Professional trial guided experience, and some stability fixes for Windows 7 users.

Cleaning:
- Added optional cleaning of Firefox crash reports

General:
- Fixed a potential crash when CCleaner Professional, Business or Tech Editions launch on Windows 7
- Fixes to the Professional trial to improve the delivery of its guided experience


CCleaner 5.66
- In this version of CCleaner we have added full cleaning support for the Brave and Vivaldi browsers!

Cleaning:
- Brave browser can now be cleaned independently
- Vivaldi browser can now be cleaned independently

Health Check:
- Fixed an issue where 'Cookies' was also deleting internet history and was incorrectly reporting large numbers of trackers
- Internet history is now deleted via the ‘History’ Privacy category, which also includes download history and recently typed URLs


CCleaner 5.65
In this version of CCleaner we have focused on adding new cleaning improvements and improving our new Health Check feature so it’s running smoothly for all of you.

Better Cleaning:
- Added new areas in Internet Explorer’s LocalAppData
- Improved Internet Explorer cache cleaning

Smart Cleaning:
- Browser Smart Cleaning now supports Edge Chromium

Health Check:
- Health Check no longer shows a connection error incorrectly
- Improved wording around connection errors to avoid unnecessary confusion
- Fixed Health Check freezing in some cases when CCleaner is launched

Localization:
- CCleaner is now translated into Bengali and Urdu
- Made improvements to various translations
- Fixed a bug where the Estonian language option was showing Slovenian

Bug Fixes and minor changes
- Fixed a bug where erroneous data was being added to the .ini file


CCleaner 5.64
Introducing… ‘Health Check’:
- Health Check brings together CCleaner’s most popular tools in a new user-friendly interface to help users to easily maintain their PC
- In just a few clicks, users of any technical ability can clean, update and disable unnecessary startup apps in one go, to save space and boost speed, privacy and security
- Health Check replaces Easy Clean, following feedback from users on how it could be enhanced

Edge Chromium & browser cleaning improvements:
- Added full support for Microsoft’s new Edge Chromium browser
- Fixed a bug in Google Earth cache cleaning
- If requested, CCleaner can now disable ‘Preloading’ in old Edge (allows complete cleaning)

User-friendly improvements to installer offers:
- Offers for Avast and CCleaner products are now presented in a separate step in the installer
- Offers for Avast and CCleaner products are no longer checked by default

Farewell to Windows XP & Vista (;_;):
- Version 5.64.7577 is the final planned build for Windows XP and Vista
- This version will only receive critical security updates
- Read our FAQs for further information and assistance

Other minor improvements:
- Improved country embargo checks to reduce false positives
- Fixed a UI bug in Scheduling interface
- Fixed a bug where ‘OK’ button missing from some dialogue messages
- Removed Google Plus from the ‘About’ screen


CCleaner 5.63
- This release contains an important security update and some minor bug fixes and UI updates


CCleaner 5.62
- Change log not available for this version


CCleaner 5.61
Windows Cleaning:
- Added cleaning for Windows 10 clipboard history

General:
- Improved translations for: Arabic, Chinese (Simplified), Chinese (Traditional), Danish, Finnish, Hungarian, Korean, Norwegian, Slovak, Swedish and Turkish
- Stability improvements


CCleaner 5.60
- Improved the Flash cleaning rules in Chrome, Opera & CCleaner Browser
- Added Smart Cleaning & Easy Clean support
- Fixed a disappearing text bug
- Fixed a navigational bug


CCleaner 5.59
Easy Clean:
- Fixed a bug that prevented Easy Clean from being shown correctly to a small percentage of users

Software Updater:
- Fixed a DPI display bug in the upgrade window

Localization:
- Inserted additional translations into the installer


CCleaner 5.58
Easy Clean:
- Fixed a bug that was causing Easy Clean to disappear from the navigation menu

Browser Cleaning:
- Fixed an issue that prevented the cleaning of Chrome's Download History

Installer:
- Google Toolbar for Internet Explorer is no longer offered in CCleaner


CCleaner 5.57

Easy Clean:
- New! Simplified cleaning flow: ‘Easy Clean’
- Original ‘Cleaner’ renamed to ‘Custom Clean’

Software Updater:
- Software Updater now confirms when there are no pending updates

Startup Management:
- Added a new tab in ‘Startup’ to manage Windows Services

Settings and Preferences:
- Added ‘preferred home screen’ setting (inherits preference from ‘cleaning results’ setting)

Installation:
- Have made steps to address the ‘Error opening file for writing’ bug by improving termination of existing CCleaner processes prior to install


CCleaner 5.56

Software Updater:
- Moved the Software Updater to the second slot in the ‘Tools’ menu
- Stability improvements
- Improved software identification
- Added new supported software

Browser Cleaning:
- Improved IE & Edge cleaning

Bug Fixes:
- Fixed an issue where the 'Cookies to Keep' list was not saving correctly

Localisation:
- Added Malay language


CCleaner 5.55

Software Updater (CCleaner Professional edition):
- Added new Software Updater feature to the ‘Tools’ menu
- Scans your PC and shows any available updates
- Select which apps you want to update and queue them up
- More improvements coming soon

Browser Plugins:
- Fixed Opera plugins not displaying correctly


CCleaner 5.54

Feature Preview:
- Some users of CCleaner Professional (and its trial) will find an early version of a new feature in the Tools menu. We will fully roll out this feature to CCleaner Professional in the coming weeks

General:
- Fixed an issue that, in isolated cases, could cause some notifications to be shown too often


CCleaner 5.53

Cleaning Rules:
- New cleaning rules for Amazon Music and Amazon Kindle

General:
- Increased the default Smart Cleaning notification threshold
- Fixed a crash when running CCleaner alongside Norton AV products
- Fixed a crash in the Professional Trial


CCleaner 5.52

Ѕubѕсrірtіоnѕ:
- Аddеd ‘Ѕubѕсrірtіоn Маnаgеmеnt’ buttоn
- Міnоr uѕаbіlіtу іmрrоvеmеntѕ tо thе ‘Lісеnѕе Іnfоrmаtіоn’ раnеl

Gеnеrаl:
- Uрdаtеd а wеbѕіtе lіnk tо uѕе НТТРЅ
- Аddеd nеw trаnѕlаtіоnѕ fоr ѕоftwаrе uрdаtе nоtіfісаtіоnѕ


CCleaner 5.51

Subscriptions:
- Added ‘Subscription Management’ button
- Minor usability improvements to the 'License Information' panel

General:
- Updated a website link to use HTTPS
- Added new translations for software update notifications


CCleaner 5.50

Software Updates:
- Added new menu: ‘Options’ > ‘Updates’
- Added new controls for automatic updates and update notifications


CCleaner 5.49

Windows and Browser Cleaning:
- Added and improved cleaning to the Common Language Runtime (CLR) folders
- Extended the cleaning of Windows error reporting temporary folders
- Fixed Firefox cleaning rules which were causing corrupted profiles for some users

General:
- Minor bug fixes
- Small UI improvements


CCleaner 5.48

Browser Cleaning:
- Added workaround for cleaning Edge while in the ‘suspended’ state on Windows 10, build 1809. This workaround is temporary while we consider a more permanent solution
- Fixed cleaning of Edge cookies in Windows 10
- Fixed a bug where cleaning Firefox Internet History would corrupt the profile

Feature Previews:
- Added support for ‘feature previews’ (limited release of features in development)
- Keep your eyes peeled for forthcoming feature previews!

General:
- Renewed our digital security certificate as the previous one was due to expire
- The certificate publisher has been updated from ‘Piriform Ltd.’ to ‘Piriform Software Ltd.’


CCleaner 5.47
General:
- Fixed cleaning from the Recycle Bin context menu
- Fixed cleaning via commandline

Browser Cleaning:
- Added a new Edge cleaning rule for cleaning Credit Card data


CCleaner 5.46.6652
Privacy Settings:
- Added a separate control for the reporting of anonymous usage data
- Added a link to a Data Factsheet (LINK), which explains the data reported from CCleaner, why it’s reported, and what it’s used for

Smart Cleaning:
- Renamed the ‘Monitoring’ feature to ‘Smart Cleaning’, to better describe its function (intelligent cleaning alerts)
- Reworded checkboxes for clarity
- If Smart Cleaning is disabled, CCleaner’s background process will close and the feature will not run on startup

General:
- Restored previous System Tray and minimize behavior
- Fixed various stability issues


CCleaner 5.45.6611
- Removed Windows.old cleaning rule
- Fixed a crash in Disk Analyzer
- Added more detailed reporting for bug fixes and product improvements


CCleaner 5.44.6575
- Internet Explorer cookies are now cleaned from the INetCache folder in Windows 10
- Fixed a bug causing cleaning incompatibility with Firefox Malwarebytes extension
- Added reminders for expired CCleaner Professional subscriptions


CCleaner 5.43.6520
- Removed Font Cache cleaning temporarily while we resolve an incompatibility with the Windows 10 April Update
- Added preference to select the level of detail on the Cleaning Results screen
- Added new Privacy menu


CCleaner 5.42.6495
- Browser Cleaning
- Internet Explorer: Fixed a bug where cleaning Temporary Internet Files left some files behind
- IE/Edge: Enhanced cleaning of YouTube viewing history (thanks alhazred!)
- Cookies
- Search terms are now highlighted in the results list
- General
- Where appropriate, CCleaner Free may recommend improvements to your system’s antivirus protection
- Installer
- Fixed an issue where localized text was overlapping in the Professional Edition installer


CCleaner 5.41.6446

UI:
- Cleaning results now displayed as a Cleaning Summary (Free and Professional versions only)
- Product tips to help users discover less visible features
- Fresh, clean Upgrade page design

Browser Cleaning:
- Edge/Internet Explorer: Fixed cleaning of cookie and icon file types on Windows 10 (thanks alhazred & Judesman for reporting this via our forum!)

Localization:
- Added improved Estonian translations (thanks to our volunteer translator ProPaan!)

Technology:
- Added support for Sciter: a lightweight, embeddable HTML/CSS/script engine for modern UI development


CCleaner 5.40.6411
Browser Cleaning:
- Edge: Added new 'Set aside tabs' cleaning rule

Windows Cleaning:
- Added warning for 'Old prefetch data' cleaning rule

General:
- Minor improvements to user interface
- Minor bug fixes


CCleaner 5.39.6399

Disk Analyzer:
- Fixed a rare crash where a UI layer was still active

General:
- Minor user interface improvements
- Minor bug fixes


CCleaner 5.38.6357

Browser Cleaning:
- Edge: Session clean no longer removes set-aside tabs
- Chrome: Added support for cleaning cookies from Local Storage

Cookies:
- Chrome Local Storage Cookies can now be managed from Cookie Manager

Windows:
- CCleaner no longer cleans the list of files waiting to be renamed

Installer:
- Fixed 'Error opening file for writing' error

General:
- Fixed a library dependency that was preventing CCleaner from opening on Wndows XP in some cases
- Fixed a rare case where CCleaner could check for updates multiple times in a short space of time


CCleaner 5.37.6309
Browser Cleaning:
- Edge: Session clean no longer removes set-aside tabs
- Firefox: Fixed an issue where some favicons were still being cleaned


CCleaner 5.36.6278
Browser cleaning:
- Firefox: updated Session cleaning rule to support changes in Firefox 56.0
- Chrome (& Chromium): updated Internet History cleaning rule to clean user activity data
- Opera: updated Internet History cleaning rule to clean user activity data

Default Cleaning Rules:
- Windows Explorer: Most Recently Used documents and other MRU files no longer cleaned by default
- Windows Defender: Scan history no longer cleaned by default
- Microsoft Office: MRUs no longer cleaned by default
- Edge, Chrome/Chromium, Firefox, Opera, Safari, Thunderbird: Current session data no longer cleaned by default

Emergency Updater:
- Added new executable: "CCUpdate.exe"
- Added new Windows Scheduled Task: "CCleaner Update"


CCleaner 5.35.6210
- All builds signed with new Digital Signatures


CCleaner 5.34.6207

Browser Cleaning:
- Firefox: Internet History cleaning rule no longer removes Favicon content

General:
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.33.6162

Settings:
- Fixed an issue where Automatic Update continued to inform users of an existing update after the setting had been disabled

Browser Cleaning:
- Updated Edge cookie cleaning definitions to include new tables from Microsoft
- Fixed an issue in Firefox where extensions could not be deleted due to withdrawal of support for Netscape Plugin API
- Fixed an issue in Firefox & Thunderbird where cleaning 'Site Preferences' would also clean 'Last Download Location'

Browser Plugins:
- Browser Plugins list now saved as browserplugins.txt (not startup.txt)

Disk Analyzer:
- Fixed an issue where analysis results did not display the full filepath

Stability:
- Improved CCleaner launch sequence to resolve a UI lock


CCleaner 5.32.6129
Browser Cleaning:
- Updated Firefox History cleaning definitions to correctly remove items with associated favicons
- Updated Chrome History cleaning definitions to restore removal of 'Other Search Engines'
- Restored support for cleaning 'Last download location' in Edge
- Restored support for cleaning 'Last download location' in Firefox

Windows Cleaning:
- 'Recent Documents' rule no longer removes items that have been 'pinned' in MS Office applications


CCleaner 5.31.6104
- Improved Windows 10 Creators support
- Improved Firefox History cleaning
- Improved Chrome Cache and History cleaning
- Optimized Scheduling functionality (Professional only)
- Improved high-DPI support
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.30.6063
- Improved Edge Cookie cleaning
- Updated Internet Explorer 10 and 11 History cleaning
- Updated Thunderbird 52 History cleaning
- Updated Windows Explorer MRU Cache cleaning
- Improved SSD detection algorithm
- Optimized Update Checking process
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.29.6033
- Improved Windows 10 Creators Update compatibility
- Updated Edge History and Session cleaning
- Updated Internet Explorer 10 and 11 Cache cleaning
- Updated Firefox History and Cache cleaning
- New Scheduling section (Professional only)
- Updated various languages
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.28.6005
- Improved Chrome and Opera History cleaning
- Improved Firefox Session and Cache cleaning
- Updated Windows Explorer MRU cache cleaning
- Improved 64-bit build architecture on Windows 10
- Optimized Auto Update process (Professional only)
- Updated ZoneAlarm cleaning
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.27.5976
- Improved Firefox and Chrome History cleaning
- Improved Opera Beta cleaning
- Improved Windows 10 Support
- Improved Uninstall tool version sorting
- Updated internal architecture
- Added Foxit Reader 8.0 cleaning
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.26.5937
- Improved Firefox History and Session cleaning
- Improved Opera History cleaning
- Improved Thunderbird Session cleaning
- Optimized 64-bit build architecture
- Updated various translations
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.25.5902
- Added support for Firefox Web Extensions
- Improved Firefox History and Cache cleaning
- Improved Chrome and Opera Session cleaning
- Improved Edge Extensions management
- Improved DPI awareness and support
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.24.5839
- Improved Firefox History cleaning
- Improved Opera and Vivaldi Session cleaning
- Updated Internet Explorer and Edge Cache cleaning
- Updated Windows Explorer MRU Cache cleaning
- Improved Monitoring notifications
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.23.5808
- Improved Microsoft Edge and Internet Cache cleaning
- Updated Microsoft Edge Tab cleaning
- Improved Firefox History and Session cleaning
- Optimized Silent Update functionality (Professional only)
- Updated various translations
- Minor bug fixes
- Minor GUI improvements


CCleaner 5.22.5724
- Improved Windows 10 Anniversary Edition support
- Improved Microsoft Edge Cookie and History cleaning
- Updated Firefox extension management
- Improved 64-bit build architecture on Windows 10
- Updated ZoneAlarm 2016 cleaning
- Minor bug fixes
- Minor GUI improvements



CCleaner 5.21.5700
- Improved Chrome 52 History and Cache cleaning
- Updated DOMStore cookie cleaning
- Improved Auto-Update checking process
- Improved crash reporting architecture
- Updated Xilisoft Video Converter cleaning
- Improved localization and language support
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.20.5668
- Improved Firefox Internet Cache cleaning
- Improved Chrome Download History cleaning
- Added Vivaldi browser cleaning
- Optimized Silent Update functionality (Professional only)
- Improved DPI awareness and high DPI support
- Added Turkmen translation
- Minor bug fixes and GUI improvements


CCleaner 5.19.5633
- Improved Firefox and Chrome History cleaning
- Improved Windows 10 MRU cache cleaning
- Optimized Browser Plugin detection routine
- Improved System Monitoring (Professional only)
- Improved Window resizing and DPI support
- Improved Unicode text support
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.18.5607
- Improved Microsoft Edge Cache and History cleaning
- Improved Firefox 46 Session cleaning
- Optimized detection and cleaning of portable browsers
- Improved Browser Monitoring functionality (Professional only)
- Improved Unicode support in Startup and Browser Plugin management
- Improved localization support
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.17.5590
- Improved Firefox 45 cleaning
- Improved Google Chrome Extension management
- Improved Windows Store apps Uninstall tool (Windows 8.1 and 10)
- Optimized Start-up Items and Browser Plugins detection
- Improved localization and language support
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.16.5551
- Added Opera GPU and Application cache cleaning
- Improved Google Chrome cleaning: IndexedDB, Quote Manager DB and Service Worker cache
- Improved Microsoft Edge Temporary Files cleaning
- Update Google Chrome Browser Plug-in management
- Improved keyboard navigation
- Updated various translations
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.15.5513
- Updated Google Chrome cleaning: Cache, Session and History
- Improved Firefox Cookie detection
- Added Disk Analyzer search feedback
- Improved System and Browser Monitoring (Professional only)
- Improved Media Player Classic cleaning
- Improved localization and language support
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.14.5493
- New Browser Plugins section for browser start up management
- Improved Google Chrome and Opera session cleaning
- Improved Disk Analyzer file scanning process
- Improved TeamViewer and PDF Creator cleaning
- Updated exception handling and reporting architecture
- Updated various translations
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.13.5460
- Added Opera and Chrome Media Cache cleaning
- Improved Chrome Extension and Cache cleaning
- Improved Windows 10 Registry cleaning
- Optimized 64-bit build architecture
- Improved Auto-Update checking process
- Improved Unicode text support
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.12.5431
- Improved Firefox 42 Cache cleaning
- Improved Google Chrome Download History cleaning
- Improved Skip UAC on Windows 10
- Improved detection and cleaning of portable browsers
- Optimized cleaning rules loading routine
- Improved localization and language support
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.11.5408
- Added Windows Store apps to Uninstall tool (Windows 8, 8.1 and 10)
- Improved Google Chrome Download History cleaning
- Improve Firefox 41 cleaning
- Optimized Start-up Items detection routine
- Improved keyboard navigation and shortcuts
- Added Microsoft Office 2016 and Camtasia Studio 8.0 cleaning
- Updated various translations
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.10.5373
- Improved Microsoft Edge Cookie management
- Optimized internal architecture for faster start up
- Added Chrome extension cache and cookie cleaning
- Improved Firefox session cleaning
- Added Firefox HSTS (HTTP Strict Transport Security) cookie cleaning
- Improved Intelligent Cookie Scan
- Improved Window resizing and DPI support
- Added Corsican translation
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.09.5343
- Improved Microsoft Edge cleaning
- Faster UI and styling improvements
- Improved Windows 10 Registry detection and cleaning
- Improved Internet Explorer 11 DOMStore cleaning
- Optimized 64-bit build architecture for Windows 10
- Improved Paint.NET and Malwarebytes Anti-Malware cleaning
- Improved localization and language support
- Minor bug fixes


CCleaner 5.08.5308
- Improved Windows 10 (10240 RTM build) compatibility
- Improved Microsoft Edge Cache and Saved Password cleaning
- Improved Opera 30 Session cleaning
- Added Microsoft Edge Browser Monitoring (CCleaner Professional only)
- Added 'Open CCleaner' to System and Browser Monitoring (CCleaner Professional only)
- Improved Include and Exclude Wildcard support
- Added Foxit Reader 7 and RealTimes cleaning
- Improved Avira Antivirus, BlueStacks and Media Player Classic cleaning
- Updated various translations
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.07.5261
- Improved Microsoft Edge (Spartan / IE 12) cleaning
- Improved Google Chrome Internet Cache and Session cleaning
- Added Firefox Web Apps start-up management
- Improved Windows 10 Recycle Bin and Delayed cleaning support
- Improved Skip UAC functionality for domain accounts
- Added Adobe Reader DC cleaning
- Updated various translations
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.06.5219
- Added Microsoft Edge (Spartan / IE 12) cleaning
- Improved Firefox session cleaning
- Improved Google Chrome Download History cleaning
- Improved system restore detection routine
- Improved keyboard navigation
- Updated exception handling and reporting architecture
- Improved localization and language support
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.05.5176
- Improved Windows 10 (build 10049) compatibility
- Improved Internet Explorer and Firefox Startup Items detection
- Improved Opera Cache and History cleaning
- Improved context menu management
- Improved DPI awareness and high DPI support
- Improved Unicode text support
- Updated various translations
- Minor GUI improvements
- Minor bug fixes


CCleaner 5.04.5151
- Added Include items option to ignore newer files
- Improved Opera history cleaning
- Improved Skip UAC functionality
- Optimized system restore detection routine
- Improved small screen size support
- Improved localization and language support
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.03.5128
- Added Google Chrome IndexedDB cleaning
- Improved Windows 10 (build 9926) compatibility
- Improved Firefox and Google Chrome session cleaning
- Improved Unicode support in Startup tool
- Improved keyboard navigation and shortcuts
- Updated various translations
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.02.5101
- Improved Firefox Local Storage and Cookie cleaning
- Improved Google Chrome 64-bit support
- Improved Firefox Download History analysis and cleaning
- Optimized Disk Analyzer scanning process
- Improved detection and cleaning of portable browsers
- Updated various translations
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.01.5075
- New Disk Analyzer tool
- Improved Firefox 34 cleaning
- Improved Opera History cleaning
- Optimized Memory and CPU usage
- Improved localization support
- Minor GUI Improvements
- Minor bug fixes


CCleaner 5.00.5050
- New improved GUI
- Improved internal architecture for better performance
- Added Google Chrome plugin management
- Improved Google Chrome Startup item detection
- Optimized automatic updates for Pro version
- Improved system restore detection routine
- Updated exception handling and reporting architecture
- Optimized 64-bit builds on Windows 8, 8.1 and 10
- Updated various translations
- Many performance improvements and bug fixes


CCleaner 4.19.4867
- Added Windows 10 Preview compatibility
- Improved Opera 25 Cache cleaning
- Improved exception handling and reporting architecture
- Improved Auto-Update checking process
- Updated various translations
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.18.4844
- Added Active System Monitoring for Free users
- Improved Firefox Saved Password cleaning
- Improved Opera History cleaning
- Improved 64-bit build architecture for Window 8 and 8.1
- Added Ashampoo Burning Studio 14, XnView and FastStone Capture cleaning
- Improved localization support
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.17.4808
- Added Google Chrome and Opera GPU cache cleaning
- Improved Google Chrome and Opera Download History cleaning
- Improved Firefox Aurora session cleaning
- Improved Firefox and Google Chrome Startup items detection
- Added PhotoScape, BlueStacks and ManyCam cleaning
- Improved AntiVir Desktop and Wondershare cleaning
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.16.4763
- Improved Google Chrome 36 cleaning and start-up management
- Improved Firefox browsing cache cleaning
- Added Repair option to Uninstall tool
- Improved 64-bit build architecture on Windows 7 and 8
- Improved Startup Item tool compatibility
- Added Teamviewer, Microsoft One Drive, Real VNC 5, Tag & Rename and Tango cleaning
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.15.4725
- Added Google Chrome 64-bit support
- Improved memory usage and management architecture
- Added Yandex browser cleaning
- Improved Wipe Free Space algorithm
- Added SnagIt 12, Format Factory, Nitro PDF Reader and Virtual DJ cleaning
- Added Social Media links
- Updated various translations
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.14.4707
- Improved Firefox and Mozilla based browser Cookie cleaning
- Improved Startup item Unicode support
- Improved Operating System detection
- Added Cyberfox browser cleaning
- Improved 64-bit Registry detection and cleaning architecture
- Improved skip UAC warning for Monitoring (CCleaner Professional only)
- Added PowerArchiver 2013, Nitro Pro 9 and Stardock WindowBlinds cleaning
- Improved Microsoft Office 2010, Foxit Reader 6, AVG AntiVirus 8, 9, 10, 2012 and 2013 cleaning
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.13.4693
- Added Windows 8.1 Update 1 and Server 2012 R2 Update 1 compatibility
- Improved Chrome cleaning: Internet History, Last Download Location and Startup item management
- Improved Opera 15 and newer cleaning: Internet History, Last Download Location and Startup item management
- Added Firefox plugin activation mode support
- Improved handling of removed and unmounted disks
- Improved Windows keyboard shortcut support
- Improved Shutdown after cleaning and /AUTO command-line
- Added Wondershare Video Converter Pro, Aimersoft Video Converter Ultimate, Real Player Cloud cleaning
- Improved Java, Windows Defender, FrostWire, CuteFTP 9, Winamp, FileZilla, SUPERAntiSpyware, OpenOffice 4 cleaning
- Added Mongolian language
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.12.4657
- Added Opera 15 and newer Saved Form Information cleaning
- Added Opera Developer Channel support
- Improved ActiveX and Class Issue Registry cleaning
- Added Facebook and Twitter cookies to Intelligent Cookie Scan
- Improved Scheduler management (CCleaner Professional only)
- Added Xilisoft Video Converter and DVD Ripper, dBpoweramp and SyncBackFree cleaning
- Improved Internet Download Manager, Oxygen XML Editor, Orbit Downloader, CA Anti-Virus, Microsoft AntiSpyware, and Vuze cleaning
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.11.4619
- Added Opera 15 and newer Startup item management
- Added File content duplicate detection to File Finder
- Improved Drive Wiper SSD detection
- Added Torch Browser support
- Added File Finder upper file size threshold
- Optimized Firefox Profile Startup items detection
- Improved Scheduler language support (Professional only)
- Improved Google Earth, Winamp, MusicMatch Jukebox, Windows Live Messenger, Free Download Manager and Internet Download Accelerator cleaning
- Minor GUI Improvements
- Minor bug fixes


CCleaner 4.10.4570
- Improved Firefox 26 cleaning
- Improved Firefox extension management
- Improved Shutdown after cleaning and /SHUTDOWN command-line
- Added new cleaning scheduler (CCleaner Professional only)
- Added Facebook Metro, Picasa 3, Spotify, Wondershare Video Converter Ultimate, Kingsoft Office 2013 and Sublime Text cleaning
- Improved Audacity cleaning
- Improved localization and language support
- Minor GUI improvements and bug fixes


CCleaner 4.09.4471
- Added Google Chrome v32 cleaning and startup management
- Added individual cookie cleaning from Cookies screen
- Improved Internet Explorer 11 DOMStore cleaning
- Added Shutdown after cle

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