UltraDefrag UltraDefrag 7.1.1 for Windows

by Dmitri Arkhangelski & Justin Dearing

Avg. Rating 4.1 (196 votes)

File Details

File Size 2.1 MB
License Open Source
Operating System Windows (All)
Date Added
Total Downloads 13,456
Publisher Dmitri Arkhangelski & Justin Dearing
Homepage UltraDefrag

Publisher's Description

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.

Latest Reviews

Aegis69

Aegis69 reviewed v7.1.1 on Oct 15, 2018

Well this project went bad fast and it basically crippleware now, now offering a 'paid' version for features that are available for free in plenty of other closed source projects..

I recommend puran defrag, 100% free and has all the features you need.

breebree

breebree reviewed v7.0.1 on Apr 5, 2016

working faster then befor.. did a perfect job on analisis. did a full opt for a 400g drive 60% full and was in poor order.. did the job fine and quicker then befor.. using amd64 8 gig memory .. have tried many optimizers.. but this tends to work better overall and if run regually keeps things neat less any stutter for many files. WIsh it had a put system files for windows in fastest section of drive.. ie for spinning rust .

andy2004

andy2004 reviewed v7.0.0 Beta 3 on Nov 24, 2015

Downloaded the portable version of this yesterday. 1. on the first analye it crashed. so i ran it again. 2. after it did the analyze and i told it to defrag it crashed again telling me to download version 6.

CyberDoc999

CyberDoc999 reviewed v7.0.0 Beta 2 on Oct 22, 2014

pure junk

breebree

breebree reviewed v7.0.0 Beta 1 on Nov 14, 2013

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

dhry

dhry reviewed v7.0.0 Beta 1 on 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.

CyberDoc999

CyberDoc999 reviewed v6.0.2 on May 17, 2013

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

Zootopia3001

Zootopia3001 reviewed v6.0.2 on 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

gatorfan95

gatorfan95 reviewed v6.0.0 on Mar 4, 2013

A very nice update to a good little utility.

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

Uriel

Uriel reviewed v6.0.0 RC2 on Feb 4, 2013

Keepsgetting better and better. I like to use this from safe mode with command prompt for a thorough defrag.

Avg. Rating 4.1 (196 votes)
Your Rating
Aegis69

Aegis69 reviewed v7.1.1 on Oct 15, 2018

Pros: crippleware

Cons: crippleware

Bottom Line: Well this project went bad fast and it basically crippleware now, now offering a 'paid' version for features that are available for free in plenty of other closed source projects..

I recommend puran defrag, 100% free and has all the features you need.

breebree

breebree reviewed v7.0.1 on Apr 5, 2016

working faster then befor.. did a perfect job on analisis. did a full opt for a 400g drive 60% full and was in poor order.. did the job fine and quicker then befor.. using amd64 8 gig memory .. have tried many optimizers.. but this tends to work better overall and if run regually keeps things neat less any stutter for many files. WIsh it had a put system files for windows in fastest section of drive.. ie for spinning rust .

andy2004

andy2004 reviewed v7.0.0 Beta 3 on Nov 24, 2015

Downloaded the portable version of this yesterday. 1. on the first analye it crashed. so i ran it again. 2. after it did the analyze and i told it to defrag it crashed again telling me to download version 6.

CyberDoc999

CyberDoc999 reviewed v7.0.0 Beta 2 on Oct 22, 2014

pure junk

breebree

breebree reviewed v7.0.0 Beta 1 on Nov 14, 2013

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

dhry

dhry reviewed v7.0.0 Beta 1 on 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.

CyberDoc999

CyberDoc999 reviewed v6.0.2 on May 17, 2013

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

Zootopia3001

Zootopia3001 reviewed v6.0.2 on 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

gatorfan95

gatorfan95 reviewed v6.0.0 on Mar 4, 2013

A very nice update to a good little utility.

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

Uriel

Uriel reviewed v6.0.0 RC2 on Feb 4, 2013

Keepsgetting better and better. I like to use this from safe mode with command prompt for a thorough defrag.

Lsavagejt

Lsavagejt reviewed v6.0.0 Beta 2 on Dec 27, 2012

I don't have all day.

Zootopia3001

Zootopia3001 reviewed v6.0.0 Beta 2 on Dec 27, 2012

Tried in the past and didn't think much of it. Has improved much since. However, did not detect my USB keyboard on boot-time scan(was supposedly fixed in version 5.xx). Default context menu insertions are overly ridiculous, but I got rid of them easily via regedit.
3 1/2 stars..... 4 stars when the USB keyboard problem is finally fixed, if it's even fixable.
UPDATE: My bad, the keyboard IS seen on boot-scan startup. 4 star program.

gatorfan95

gatorfan95 reviewed v5.1.0 on Oct 20, 2012

A good update to a very nice little utility. Finding the 64 bit version is a bit of a chore. But over all a definite 5 star pick.

gatorfan95

gatorfan95 reviewed v5.0.6 on Jun 21, 2012

I have been a fan of Piriform's Defraggler for quite a while, but after reading the reviews on this I figured I'd give it a try. This version would not work on my Win 7 64 bit system. I did a little scrounging around and found the 64 bit version, installed it and was pleasantly surprised. A very nice little utility.

Music4Ever

Music4Ever reviewed v5.0.4 on Apr 9, 2012

All you need: It does the job of defrgging very well ~ If you want however a fancy interface, unnecessary services running in the background & prefer to pay there are commercial defraggers that do the job just as well.

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