Smart Defrag helps defrag your hard drive most efficiently

Smart Defrag

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Download Smart Defrag 9.3.0.341

Smart Defrag

  -  14.3 MB  -  Demo
  • Latest Version

    Smart Defrag 9.3.0.341 LATEST

  • Review by

    Michael Reynolds

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10 / Windows 11

  • User Rating

    Click to vote
  • Author / Product

    IObit Lab / External Link

  • Filename

    smart-defrag-setup.exe

Smart Defrag is a FREE, light, and stable disk defragment tool designed for maximum hard drive performance. Based on IObit latest disk defrag engine and "Boot Time Disk Defrag" technology, Smart Defrag not only provides defragmentation, as any typical disk defragmenter can do but also intelligently streamlines your files based on using frequency, thus accelerating disk speed for faster data access!

With the unique Deep Analyze technology, it smartly cleans junk files before defragmentation to save more disk space for you. Being the first Disk Defragmenter that fully supports Windows 8/8.1/10 Metro Apps, It works fast, automatically and quietly in the background and is a disk defragmenter suitable for large hard drives.

Features and Highlights

Higher File Access Speed
Disk fragmentation is generally the main cause of slow and unstable computer performance. In order to accelerate your hard drive for faster data access and outstanding disk performance, the tool provides efficient defragmentation technology to hard drives and SSD using multi-threading defragging whilst also consolidating free space and defragging large files. Then you can enjoy faster game launching speed, copy files in half the time, etc.

Up to 100% Faster PC Startup
Specific boot files in the system disk are not allowed to be moved safely while Windows is running, which causes a slower and slower system startup. The Boot-time Defrag feature of the tool will easily do this job for you, it can help you safely defrag files on HDD. Furthermore, using a feature unique to IObit, it allows you to customize defrag specified files during system boost. After that, you can enjoy a faster PC startup and top running speed on your PC with the most stability.

Safe & Automatic Disk Defrag
Smart Defrag for Desktop not only provides disk defragmentation as any other tool does but also optimizes it by intelligently streamlining your files based on using frequency. With IObit latest disk defrag engine, it is just as safe for your files as using Windows. And you just need to install & forget it. It will automatically work for you with no data lost.

Faster PC & Quicker Access Speed
Disk fragmentation is the main cause of a slow computer. With enhanced multi-threading defrag engine and improved defrag speed, It provides a better solution for faster data access and outstanding disk performance. Then you can enjoy faster game launching speed, copy files in half the time, etc.

Quicker System Boot-Time
As your computer getting older, it takes longer to start up your computer and begins to work. The app helps fix this problem easily. Configuring Boot Time Defrag feature, those files on HDD that cannot be moved while the system is running can be quickly defragmented for faster startup.

Enhanced Game Performance
Nobody wants to experience a long game load time. Game Optimize in SmartDefrag can optimize your game experience quickly with an ultra-fast engine, and all you need to do is select the game you’d like to defrag.

New and Important Changes in Smart Defrag:

Defrag Engine
New Defrag Engine supports multithreading for ultra-fast, stable, and efficient defrag.

Large File Defrag
Defragment large files to accelerate disk read/write speed and enhance disk durability.

Disk Health
Monitor the disk status in real-time: Temperature, Usage, Self-monitoring analysis report, etc.

Smart Defrag/Optimize
Intelligently apply the most suitable defrag/optimize the method for different disks to reach top performance.

Also Available: Download Smart Defrag Portable

  • Smart Defrag 9.3.0.341 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

What's new in this version:

Smart Defrag 9.3.0.341
- Change log not available for this version


Smart Defrag 9.2.0.323
- Optimized Auto Analyze for more intelligent analysis and more accurate results
- Improved algorithm to increase file access speed
- Updated multiple languages
- Fixed minor bugs


Smart Defrag 9.1.0.319
- Optimized Large File Defrag to accelerate disk reading/writing speed and enhance disk durability
- Improved Boot Time Defrag for faster PC startup
- Fixed known bugs


Smart Defrag 9.0.0.311
- Change log not available for this version


Smart Defrag 9.0.0.307
- Defragmentation engine and its algorithm have been optimized for faster defragmentation and optimization
- Improved Analysis to provide more accurate results and better optimization
- Improved Disk Cleanup to free up more disk space
- New giveaway to win free Smart Defrag Pro or favorable discounts for other IObit products
- Supports 42 languages


Smart Defrag 8.5.0.281
- Optimized the algorithm for more effective defragment
- Updated multiple languages
- Fixed minor bugs

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