MyDefrag 4.0 was released two days ago after a series of beta releases and a name change from JkDefrag. The new version has still all the traits of the popular JkDefrag. Interested users can take a look at the changes in this new version in the announcement forum posts made by the developer of the file defragmentation software. The program uses the Microsoft defragmentation api and is considered to be one of the fastest resource friendly file defragmentation programs available for the Windows operating system.
Several options are added as start menu entries after installing the latest MyDefrag version on the computer system. This includes running an analysis of all connected hard drives, defragmenting all of them, running a fast optimize script or to optimize flash drives. The real strength of MyDefrag are the extensive command line parameters and scripting possibilities that make it possible to individualize the defragmentation process.

Quite a few graphical user interfaces have been created for JkDefrag in the past. It is very likely that at least some of these will be made available for MyDefrag as well. This will help inexperienced users and those that do not like working with the command line to make use of the full functionality of the file defragmentation software.
MyDefrag is available for 32-bit and 64-bit editions of Windows XP, Windows Vista, Windows Server 2003 and 2009 as well as Windows 2000.

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The beta version was crashing quite often. Hope they have corrected it.
Actually command line parameters got reduced to almost nothing. Now all stuff is controlled by new script system.
I wonder if there will be as many GUIs for this one. Maybe for basic settings, but fully implement all of new script options in GUI would be tough.
I’m not happy. The author has built this huge and complex script system for some unknown reason (self-fellatio?) making the program impossible to use. The previous command line parms had been documented over time and were understandable w/o a lot of work. Now you need to learn a new script language just to use a simple disk defrag system.
This is an example why engineers need managerial oversight! Sheese.
and It is not portable anymore… :-(
Possible to use it just after download made this program for me as a choice though…
@turu
It is still portable, you can copy and use main executable wherever.
But I agree – I’d like to see simple archive distribution and screensaver mode without going through install back.
While I really like the new flexibility of the scripts, MyDefrag really needs, at a minimum, a basic GUI to allow selection of a particular script to run on which drives, and to at least launch Notepad to edit a script. It’s ridiculous to have to customize command lines to run a particular shortcut, and manually find and edit the scripts.
Bonjour, bel effort pour nous proposer des logiciels de ce type toujours plus performants, encore que là lorsqu’on n’est pas versé dans la langue anglaise et comme pour beaucoup de logiciels utilitaires qui semblent intéressants l’aide proposée n’est malheureusement pas traduite en français. De ce fait le subjectif ou l’intuitif n’est parfois pas toujours suffisant pour exploiter au mieux les capacités des logiciels proposés ce qui est fort regrettable. Néanmoins merci pour nous offrir ce type de logiciels en free.