UltraDefrag 7.0.0 Beta 1

4.2 out of 5 stars 4.2 (163 votes)


Windows (All) / Open Source / 12,465 downloads

UltraDefrag is powerful Open Source defragmentation tool for Windows NT. It is very fast, because the defragmenting is done by kernel-mode driver. They are three interfaces to them: graphical, console and native. The GUI is very useful, because it represents your filesystem visually as a color coded cluster map. The console is another option for those that prefer the command line. It allows you to run UltraDefrag from the task scheduler and scripts.

  • Homepage


  • Uninstaller


  • Latest Changes

    - GUI and command line tool reimplemented on top of wxWidgets library

    - Online translation migrated from http://ultradefrag.wikispaces.com/ to http://www.transifex.com/projects/p/ultradefrag/

    - Initial language selection is now done by the GUI instead of the installer

    - Ability to hide drives list columns through their resizing added

    - Ability to apply for all or only stable update notifications added

    - Multicolumn language selection menu implemented

Reviews of UltraDefrag

  1. 3 out of 5 stars

    Reviewing 7.0.0 Beta 1 (Nov 14, 2013)

    just got this from avast
    Win32:Dropper-gen [Drp] Virus blocked when i tryed to dl the file.

  2. 1 out of 5 stars

    Reviewing 7.0.0 Beta 1 (Jun 24, 2013)

    Extremely unimpressive program. Ran a full defrag with it on one of my drives which was mostly defragmented to see what it would do. It started pulling data and writing it to the END of the disk, leaving 50% alone and moving 50%.. continued on like that, doing nothing else, for about ten minutes. When it was halfway completed I quit out. I don't know what it was going to do after it finished, but a regular defragmenter analyses data and moves it if necessary. MyDefrag placed the data properly, and doesn't do a massive amount of work on already-close-to-defragmented drives. Avoid this program, the defrag algorithm looks pretty useless.

  3. 3 out of 5 stars

    Reviewing 6.0.2 (May 17, 2013)

    faster is NOT better..... I can do an 8 hour defrag with o&o defrag and the results are amazing

  4. 3 out of 5 stars

    Reviewing 6.0.2 (May 17, 2013)

    "- The Explorer context menu is now reduced to a single entry with sub-menu on Windows 7 and above"

    How about an option to NOT have context menus during install. Guess that would be asking for too much. Good thing there's no real reason for me to update to this version.
    3 1/2 stars

  5. 5 out of 5 stars

    Reviewing 6.0.0 (Mar 4, 2013)

    A very nice update to a good little utility.

    All Day? This is one of the fastest defrag utilities I have ever used and this version is faster than the last.

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