MyDefrag (formerly JkDefrag) is a disk defragmenter and optimizer for Windows. Completely automatic and very easy to use, fast, low overhead, with several optimization strategies, and can handle floppies, USB disks, memory sticks, and anything else that looks like a disk to Windows.
Rated 40/50 by davidlwebb at Sep 15, 2009
"It works very well." It is easy to follow as it does its job. The first time it was very slow. I expect that to improve with time.
Rated 20/50 by anomoly at Oct 4, 2009
Slow slow slow. Cpu goes all the way up with a spare ide holding 50 gb of pics and wants to take like a week on fast optimize. Went back to ultradefrag, also sourceforge, and it blew through that drive in about 10 seconds. Ultra uses more memory but uses ~5% of the cpu only. This runs ~40-95% cpu with near no effect on my memory.
Rated 10/50 by TomWibbaert at Oct 5, 2009
Crap thing, hang and crashes and eats CPU's and memory ad infinitum with every (buggy) line of code it contains. 1 postive thing though, the installation procedure doesn't crash or hang LOL.
Rated 30/50 by dhry at Oct 5, 2009
Yep. This one's still a fair way from being complete. Lots of nice options but it kills your CPU and there's still major problems with memory allocation - enough to take over 5 hours on a 30Gb drive then die with an out of memory error. Check out the forums for more info, but avoid this program for the moment. Still not ready for prime time. http://www.mydefrag.com/...index.php?topic=2588.30
Rated 10/50 by nugro at Oct 7, 2009
Optimize monthly option took 1 day to defrag my 1/2TB harddisk. Optimize daily eat 1.5GB of my 2GB rams, crawling my system to oblivion. Optimize weekly didn't get a chance to run cause I uninstalled this POS. JKdefrag was good, what went wrong? Dont fix it if it ain't broken...
Rated 40/50 by tonykats at Oct 12, 2009
"Does job effectively, more options than wins defrag." I use it instead of the windows "built-in" defragger. It gives you more options, also I believe it allows you to defrag multiple drives. Nothing negative.
Rated 30/50 by swreynolds at Oct 12, 2009
Pros: works well, works fast. I run 2 passes, one to defrag files and the other to consolidate free space. Cons: It has 2 displays you can choose from while it is defragging. One is a diskmap which presents a completely useless display of the disk fragmentation. The other is the statistics page which presents many clearly wrong numbers. For example, I'm currently consodatine free space on an 80GB hard drive. The total bytes is correct, but it lists 98GB of unfragmented items! At the end of the defragmentation run, the statistics are replaced by nonsense for either view. Who tested this before release?
Rated 10/50 by Sammo at Oct 12, 2009
This is a piece of junk. The same hard drive that takes about 20 minutes to completely defrag with Auslogics Disk Defrag took around 12 hours with MyDefrag. Stay away. Just stay away. Get a program that functions efficiently instead.
Rated 50/50 by thedon611 at Oct 12, 2009
"Easy to use. Very effective." Very intuitive. There are no cons. Extremely easy to use. Automatically defragments any drives configured. The system speeds up significantly when completed.
Rated 50/50 by hulksweider at Oct 18, 2009
"A more complete defragmentation than other products." I defragmented with two other products - which apparently only perform cursory cleanup - one was part of a highly rated software suite. This was used right after the other two an ran for quite a while doing what the other products did not. NONE so far Thanks for the fine Freeware.
Rated 40/50 by davidlwebb at Oct 19, 2009
"Is fast, works very well" Is fast, works very well Nothing so far Is fast, works well
Rated 50/50 by droid5071 at Oct 21, 2009
"Looks like it works much better than Msft" Easy Installation; Runs in background, although slower when other apps are open Nothing yet
Rated 40/50 by JKat43 at Oct 23, 2009
"it does the job" it seems to work just fine to me none that i know of i'm not extremely tech savy, so i dont know how good this is compared to other products out there, but it seems to do the job it is intended for.
Rated 40/50 by dhry at Oct 27, 2009
v4.2.4 is probably worth trying again for those people who thought it was slow. The slowness was usually due to the presence of compressed files on your HD which the program always had a problem with - note that when I say "compressed" I'm talking about NTFS compression, not things like zip. This version has a bugfix for that.. giving a tentative four stars until I test it tonight. In the meantime, here's the changelog for this release: * Fixed a bug in the Title() setting that caused it not to replace macros. * Fixed a bug where a change in the size of the windows would not be remembered if the windows were not moved away from the top-left of the screen. * Added a parameter to * PlaceNtfsSystemFiles to set the size of the NTFS reserved area. * Added the !ProgressPercentage! macro. * The script chooser will no longer display volumes that are excluded with ExcludeVolumes() in the Settings.MyD file. * Changed the syntax of the * MakeGap and * AddGap actions. It is now possible to place zones anywhere, they do not have to be placed one-after-another from the beginning of the disk. * Changed the default scripts so that the MFT, some other NTFS system files, and the directories, are now placed 30% into the data on the disk. * Fixed a bug in the screensaver that would not display the progress percentage. * Fixed a bug in the graphics code that will properly show StatusBar(path) if StatusBar(Status) is not specified. * Changed the vacate function so that when there are no gaps above the end of the zone, it will use the highest gap available. Before it would use the first gap available. * Changed the default script for the screensaver into Optimize Daily. Before it was Optimize Weekly. * Changed the default setting for the status bar of the screensaver into Full Status Bar. Before it was No Status Bar. * The positions of the windows are now also saved when the windows are moved and not only when they are res
Rated 30/50 by dhry at Oct 27, 2009
Update: v4.2.5 is out. STILL not usable. Ran for about 8 hours on my C: last night and never got past 13% of completing zone 1 of 15. I recommend people continue to avoid this until the major bugs (such as running for over 8 hours without getting more than 13% of the first zone completed) are ironed out. Changelog for v4.2.5: * Added the !InstallDirectory! macro. * Added the !ScriptDirectory! macro. * Added the !ExecutableDirectory! macro. * It is now possible to use macros inside included files. * Added the * ProcessPriority setting. * The MakeGap() and AddGap() functions before v4.2.4 would automatically scale down a gap if it would not leave enough room for the remaining data to be processed. This limiting is now removed. * Added an extra test to make sure the script chooser will only list "*.MyD" files, and not for example "*.MyD~". * Fixed an infinite loop for unmovable NTFS compressed files. * Fixed a bug that prevented the PreventScreenSaving() and PreventPowerSaving() settings from working if they were placed in the Settings.MyD file. * Fixed an infinite loop problem for extremely rare cases where the Microsoft defragmentation api returns an empty list of extends. * Change the tree locking timeout from 15 minutes to 2 minutes. ---------- v4.2.4 is probably worth trying again for those people who thought it was slow. The slowness was usually due to the presence of compressed files on your HD which the program always had a problem with - note that when I say "compressed" I'm talking about NTFS compression, not things like zip. This version has a bugfix for that.. giving a tentative four stars until I test it tonight. In the meantime, here's the changelog for this release: * Fixed a bug in the Title() setting that caused it not to replace macros. * Fixed a bug where a change in the size of the windows would not be remembered if the windows were not moved away from the top-
Rated 40/50 by Robert Galena at Oct 29, 2009
"A good program" It maintains my computor error free. Nothing wwrong with it.
Rated 50/50 by johnnybob at Oct 30, 2009
Best Defragment & Optimization tool I have ever found. And it's FREE! There are no CONS when it comes to FREE Software ;) I have a High End Gaming Rig and I also do 3d animation with software such as but not limited to "Cinema 4D R11.5, AutoDesk ect.... And I use the Adobe Suite CS4 everyday as I also create and maintain websites. I have lots of Software and Games. I run My very own Linux Servers as well and use a Particular SCSI setup in My Call Of Duty 4: Modern Warfare Server Machine, I have 8 different Computers and Laptops all networked together for Net Rendering and Workstation needs. Im very pleased with the way MyDefrag A.K.A.-JKDefrag disk utility works and I recommend it to all My customers and they see a signifigant performance increase afterwards from what they have told Me about their experiance with "MyDefrag" My buddies and I all ride Harleys together and I have recommended MyDefrag to those Guys Which some of them are not very PC friendly but this is a easy Program for them to use, even after I work on their Computers I tell them to run that first in Default mode then call Me and they all have good things to say about their PC's performance afterwards
Rated 40/50 by Rovacop at Nov 2, 2009
"Easy to use daily, weekly and monthly" The ability to select different levels of defrag & optimization makes it much more convenient to use on a daily basis. Weekly, it may take 2-3 times as long. Monthly, one can initiate the full defrag and sorting of files. The monthly option has stopped responding a couple of times in the later stages of optimization. In both cases, I was able to kill the program, restart the monthly option and have it successfully complete the option in a relatively short time.
Rated 30/50 by dhry at Nov 3, 2009
In addition to my note below, this version also takes an unnecessarily long time to analyze the drive. There's still opportunity for some major procedural optimization in this area. Every other defrag program generates a drive analysis about five times faster. Perfectdisk screams by comparison. I'm definitely hanging around to see what develops with MyDefrag but there's still plenty of sawdust on the ground with this program right now.
Rated 50/50 by Ulmo at Nov 3, 2009
This simply is the best Defrag soft out there. It only lacks a portable version like JkDefrag had ;)