MyDefrag (formerly JkDefrag) 4.1.2

Rated 40/50 by dickwho at Jan 21, 2010

"Very few free gifts in life. This is one!" Easy for 'me' to use! None that I'm aware of.

Rated 40/50 by whomthesonsetsfree at Feb 6, 2010

"New Computer user" I find that this does an excellent job! Don't have any "cons" as yet

Rated 40/50 by larrymosebowers at Feb 13, 2010

"does a throw job with schedule control" install ,schedule and let it do tis work on daily, weekly or monthly timing. after a system restart, a visit to task scheduler to reprogram properties for conformation of log on authority for task run required

Rated 30/50 by cltx99 at Feb 15, 2010

Does the job well, but is incredibly slow.

Rated 40/50 by univers4113 at Feb 15, 2010

MyDefrag 4.2.8 And not 2.4.8 Nice and pretty version see changelog 4 more informations

Rated 30/50 by JustForMyMemory at Feb 16, 2010

this program needs so much tweak and editing - The installer is stupid and not-so-much-smart, you have to remove old version before install a new one. - The screensaver is not smart, can not be portable - Did not remember view setting - Pretty slow, sometimes crash

Rated 40/50 by whomthesonsetsfree at Feb 16, 2010

"MyDefrag 4.2.8" It's fine...I am a novice with computers..so like i said It is fine. I said it is fine..so far

Rated 10/50 by mikewt at Feb 17, 2010

Defragging USB sticks will break them (see draculla's review) or at the very least shorten their lifespan. Don't EVER do it. The reason: USB are solid state devices, hard disks are magnetic devices. Solid state devices can only write to each cell a limited number of times (50,000 - 1M) before they become stuck - read only. Hard disks being magnetic can be written (millions). Do NOT defrag USB drives.

Rated 50/50 by jamestodd96 at Feb 21, 2010

"Excellent Program. FAst and smooth and simple." fast and simple and smooth nothing at all

Rated 50/50 by 18cdbob18 at Feb 21, 2010

"Everyone should have MyDefrag (defragger/optimizer)" 1) Can safely be paused so you can use your pc without fear, then can turn it to resume where it left off.2) 3 levels of operations -- all explained3).Runs in Windows mode. No reason for safe mode.4) Free with 'how-to' built into the program. Nothing I've found except the time it takes.....but it's so much faster than everything else designed to do half the job this does No need to fear defraggers/optimizers anymore. This does the job safely and faster than anything else, free or not.

Rated 30/50 by dhry at Feb 25, 2010

Great idea, very configurable, but still has a major bug that needs to be ironed out. Basically, the program can use 100% of your CPU and spend HOURS moving an incredibly small amount of data. The author claims this is due to NTFS compression on a drive, but no other defragmenter has this problem and it manifests even when there is no NTFS-compressed files on the drive at all. In addition, I've found that the program can be closed but will continue to run for ages in the background (still using 100% CPU) before it finally decides to quit out. On smaller drives, or if you're lucky, the program will work fast and does everything you'd expect. However, it's pretty far from something you should trust your important data to. Stick with one of the commercial guys, like PerfectDisk, or else something solid and reliable like Defraggler for the moment. Forum post: http://www.mydefrag.com/...=3165.msg21010#msg21010

Rated 10/50 by pdun459 at Mar 1, 2010

There aren't any Drive map and user interface look like chimps designed them. You can take a gamble and hope that the preset defrag options will do what they claim, but if you do there's still no way to verify what it did except with another defragger that has a drive map you can actually read. If you want to design your own optimization strategies you must first wade through a mountain of technical information. This defragger may be of some use for irredeemable eggheads with nothing to do but sit around reading technical manuals, but if you're just an average user who wants to defrag your system I would steer clear of this one.

Rated 50/50 by dhry at Mar 8, 2010

Changelog: * Added a check to * MoveToEndOfDisk to exit more quickly if the program is stopped prematurely. * Fixed an installation bug that causes an "unable to execute file" error for the MyDefragScreenSaver.scr file. * Changed the * MoveToEndOfDisk fileaction so it will skip a file faster if there is no gap large enough above the file. * Changed the * MoveToEndOfDisk fileaction so it will stop faster when MyDefrag is stopped by the user. * Fixed a bug that limited the value of constant numbers in a script to 2147483647. * The ZoneBegin will no longer be automatically moved by a zone that contains a MoveToEndOfDisk fileaction. * Removed the automatic disk filters from most of the default scripts. For example, the script for flash memory disks will now run for all the selected disks, and not only for removable disks. * Fixed a problem where enlarging a gap for FastFill would be extremely slow if the file to be moved away was a NTFS compressed file. * Fixed a bug in MaxRunTime statement that would cause it to always use zero as maximum runtime. * Fixed a bug that could cause the subroutine that enlarges gaps for FastFill(WithShuffling) to move items that were already processed (placed in a previous zone). * Fixed a bug in the grammar that prevented the WhenFinished(Shutdown) setting from accepting the sub-options. * Fixed 2 bugs in string variables. * Changed PreventScreenSaving() into * SetScreenSaver. * Changed PreventPowerSaving() into * SetScreenPowerSaver. * Changed the subroutine that vacates the NTFS reserved area, Previously it would not count NTFS reserved area free space that was already there, resulting in unnecessary data movement. * Fixed a bug in NTFS scanner so it will now load a minimum of 1 sector when loading the first record of the MFT. On ultra-big harddisks the size of an MFT record (1 kilobyte) can be smaller than the number of bytes per sector. * The * ImportL

Rated 20/50 by dhry at Mar 8, 2010

Changelog: * Added a check to * MoveToEndOfDisk to exit more quickly if the program is stopped prematurely. * Fixed an installation bug that causes an "unable to execute file" error for the MyDefragScreenSaver.scr file. * Changed the * MoveToEndOfDisk fileaction so it will skip a file faster if there is no gap large enough above the file. * Changed the * MoveToEndOfDisk fileaction so it will stop faster when MyDefrag is stopped by the user. * Fixed a bug that limited the value of constant numbers in a script to 2147483647. * The ZoneBegin will no longer be automatically moved by a zone that contains a MoveToEndOfDisk fileaction. * Removed the automatic disk filters from most of the default scripts. For example, the script for flash memory disks will now run for all the selected disks, and not only for removable disks. * Fixed a problem where enlarging a gap for FastFill would be extremely slow if the file to be moved away was a NTFS compressed file. * Fixed a bug in MaxRunTime statement that would cause it to always use zero as maximum runtime. * Fixed a bug that could cause the subroutine that enlarges gaps for FastFill(WithShuffling) to move items that were already processed (placed in a previous zone). * Fixed a bug in the grammar that prevented the WhenFinished(Shutdown) setting from accepting the sub-options. * Fixed 2 bugs in string variables. * Changed PreventScreenSaving() into * SetScreenSaver. * Changed PreventPowerSaving() into * SetScreenPowerSaver. * Changed the subroutine that vacates the NTFS reserved area, Previously it would not count NTFS reserved area free space that was already there, resulting in unnecessary data movement. * Fixed a bug in NTFS scanner so it will now load a minimum of 1 sector when loading the first record of the MFT. On ultra-big harddisks the size of an MFT record (1 kilobyte) can be smaller than the number of bytes per sector. * The * ImportL

Rated 50/50 by thos2 at Mar 12, 2010

1) it does its job well, the disk is faster after use 2) it is regularly updated with bug fixes and improvements 3) this version is noticeably faster than before 4) it is safe to use, I've never had any problems using it, or its predecessor. 1) nothing, it is a fine example of how utility software should be written and supported. Some complain about the interface. It tells you what you need to know and gets the job done easily. What more do you want? 1) Defragmenting is an essential part of PC maintenance, like putting oil in your car. 2) MyDefrag beats all others in terms of flexibility, support, and performance. This is just my opinion after using most of the opposition, free and commercial, over decades. I have yet to see a totally objective way of measuring defragmentation performance - the disk changes all the time, as does your usage of it. 3) Defragmentation is probably the most dangerous thing you do to your disk. So the software has to ooze confidence. MyDefrag does this in spades! 4) I always read update history before installing software. This tells me about the professionalism of the author and how much he cares about the product. No complaints about MyDefrag - it gradually improves all the time. 5) the user and author technical support is excellent. 6) MyDefrag, coupled with CCleaner, are two of the finest utility programs ever written. Used in tandem, they speed up your system, never do anything fatal (or even annoying), and make your disk last longer. 7) Did I mention that myDefrag is free? (as is CCleaner).

Rated 40/50 by oicthreeiii at Mar 14, 2010

"A very excellent and fast product." It is easy and fast. At this time I have not found anything wrong with this product. Everything works as you would like it to.

Rated 50/50 by 18cdbob18 at Mar 14, 2010

"fast, easy optimizer and defragger" all the documentation you'd need is built into the interface you may wind up using this daily, which will make for some downtime, depending on the level you choose and when you start the process the simplest, fastest trouble-free app out there for these delicate tasks...and it's free..

Rated 40/50 by rphonstenk at Mar 18, 2010

"Good program, basic with scripts, customise possible." Easy to customise and plan tasks, works like a charm on Windows 7 Pro. drawback, no update in same directory, makes it difficult to update for non expierence user. Use it with the standards scripts in task works like a dream.

Rated 40/50 by Jump at Mar 19, 2010

"Great Free Defragger" Defrags on the fly when the screen saver comes on. Defrags in different modes, Daily, Weekly, Monthly I haven't found any big problems yet. I'm still testing and have only been using the product for about a year. The newer interface is great. This one is good enough to go ahead and send a little cash to keep the improvements coming.

Rated 40/50 by ltwardzak at Mar 23, 2010

"Quick and easy to use - provides my desired outcome." Does the job its designed to do very well. My Defrag is not the most intuitive package I've ever used. Although I got all things done I wanted to, I may have missed some capabilities that I wasn't quickly able to identify to use.