A powerful and simple disk defragmentation system tool for Windows

UltraDefrag (64-bit)

Join our mailing list

Stay up to date with latest software releases, news, software discounts, deals and more.

Download UltraDefrag 7.1.4 (64-bit)

  -  3.43 MB  -  Open Source
  • Latest Version:

    UltraDefrag 7.1.4 (64-bit) LATEST

  • Requirements:

    Windows XP64 / Vista64 / Windows 7 64 / Windows 8 64 / Windows 10 64 / Windows 11

  • User Rating:

    Click to vote
  • Author / Product:

    UltraDefrag Development Team / UltraDefrag (64-bit)

  • Old Versions:

  • Filename:


  • MD5 Checksum:


UltraDefrag 64-bit is a powerful Open Source Defragmentation Tool for Windows Platform. It can defragment any system files including registry hives and paging files. Also one of the main goals of UltraDefrag is doing the job as fast and reliable as possible.

When files consist of many little fragments scattered around the disk the computer needs more mechanical work to read them. Because of that, the disk access becomes slower.

The app reduces the file fragmentation, thus it makes disk operations faster. Also, the program can optimize a whole disk by placing small files close to each other, sorted by path (or other criteria). After the disk optimization less mechanical work is needed to read groups of small files. This reduces startup times of many applications including web and photo browsers.

In contrast with the most other disk defragmenters, the tool can defragment locked files by running during the Windows boot. Actually all files including page and hibernation files can be defragmented there. Also, Ultra Defrag 64-bit aims to be fast, simple, reliable, and efficient.

UltraDefrag has the following features:

  • System files defragmentation (page-file, hibernation file, etc)
  • MFT (master file table) defragmentation
  • NTFS metafiles defragmentation
  • Ultra-fast NTFS analysis
  • Fast defragmentation algorithm
  • Effective disk optimization algorithm (many strategies available)
  • Safety, it can never damage processed files
  • Simplicity, it can be used without reading the documentation
  • Ability to defragment single files/directories from the context menu of Explorer
  • Ability to defragment additional streams attached to NTFS files
  • Ability to exclude any unimportant files based on flexible filters
  • Ability to defragment files, which have more fragments than specified by a threshold
  • Ability to automatically break defragmentation when the specified time interval elapses
  • Ability to perform defragmentation only when the disk fragmentation level is above the specified value
  • Ability to select multiple disks for the defragmentation
  • Well readable HTML reports
  • Powerful command-line interface
  • Ability to automatically hibernate/shutdown PC after a job is done
  • Ability to make an automatic effective defragmentation through Windows Task Scheduler
  • Multilingual graphical interface
  • Little binaries (about 1 Mb)
  • Portable version available which requires no installation
  • Native 64-bit support
  • Open source code licensed under GPL

Also Available: Download UltraDefrag Portable

Join our mailing list

Stay up to date with latest software releases, news, software discounts, deals and more.