Tired of using the disk defragment utility that comes along with your system? The standard disk defragmenter in our system has only basic functions and the speed of it is very slow. Want to use a powerful and quick disk defragmenter? Ok, you are lucky! Here I will commend an excellent disk defragment utility to you. That is JkDefrag which was published by J.C. Kessels. Following is the general introduction of this disk defragmenter.

JkDefrag is a disk defragmenter that can be run in as-needed or automatic mode via command-line parameters or screensaver integration. By default, the program uses a Fast Optimization, designed for everyday use, but it also supports custom parameters that can move files to the end (or beginning) of the disk, sort them by name, size and other criteria. Even though JkDefrag can be run with a standard Windows GUI, most of it is strong features are aimed at users that are familiar with command-line usage. In addition, JkDefrag is free for us and it does not contain any adware or spyware, so we can use it safely and undisturbed. It is standalone software and does not need any extra software and hardware requirement. It works with Win2000/XP/2003/Vista and its current version is 3.35.

Following are some key functions and benefits of this great disk defragmenter, including:

1. JkDefrag is 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.

2. JkDefrag includes a Windows version, a command line version (for scheduling by the task scheduler or for use from administrator scripts), a screensaver version, a DLL library (for use from programming languages), versions for Windows X64, and the complete sources.

3. When JkDefrag is running we will see lot of messages zipping by showing us exactly what is happening. The messages are also stored in the log file for later inspection. The log file may also contain warning messages, for example when a file could not be moved. This is normal, no need to worry. Windows has many system files that can not be moved while Windows is running.

4. JkDefrag is very safe for using. JkDefrag is based on the standard defragmentation API by Microsoft, a system library that is included in Windows 2000, 2003, XP, Vista, and 2008. Most defragmenters are based on this API, including commercial defragmenters. Basically all JkDefrag does is send "move this file to that location" commands to the API. It does not touch the disk by itself, and is therefore extremely solid. If our disks use NTFS then we have even safe when the computer crashes in the middle of defragment. Nevertheless, it is still a good idea to backup before defragment, just like with other defragmenters, because the heavy use of the hard disk may trigger a hardware fault, and/or overheating.

5. Other advantages of JkDefrag include: Directories are moved to the beginning of the disk. Reclaims MFT reserved space after disk-full. Maintains free spaces for temporary files. Can defragment very full hard disks. Can defragment very large files. Can defragment individual directories and files. Can be used as a screen saver. Sources available, can be customized and much more.

In a word, JkDefrag has a friendly and easy-to-use interface. This is a very nice, easy to use and full-functions disk defragmenter. Not only can beginners use it simply but also experienced users can also use it for advanced application. It is an ideal solution for beginners. With all these features, simple interface, excellent usability and free trial - why are you still reading? Download the free trial now and experience how powerful and effective it is at once! If you feel this utility is helpful indeed, introduce it to your friends please!

JkDefrag is a disk defragmenter and optimizer for Windows 2000/2003/XP/Vista/2008/X64. 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. Included are a Windows version, a commandline version (for scheduling by the task scheduler or for use from administrator scripts), a screensaver version, a DLL library (for use from programming languages), versions for Windows X64, and the complete sources.

Permissions
JkDefrag needs "full control" permissions to all files and disks that it must defragment/optimize. On a default Windows system the "administrator" userid has full permissions to all files and disks. Users can also run JkDefrag, but then it can only defragment/optimize the files and disks for which the user has "full control".
Note: On Vista right-click the JkDefrag program and select "run as administrator".
Stopping
All versions of JkDefrag can be stopped safely at any time, there is no risk of losing data or corrupting your disk. You can use all the usual ways to stop a Windows program, such as pressing ALT-F4, clicking the 'x' in the top-right corner, via the pull-down menu in the taskbar, or by killing the program via the task manager or another utility. The commandline program can be stopped the same way, plus by pressing CTRL-C, or BREAK. It may take a bit of time for the program to actually stop, JkDefrag will finish the current file in the background.
Logfile
JkDefrag writes all messages to a logfile called "JkDefrag.log", or "JkDefragCmd.log", or "JkDefragScreenSaver.log", depending on which version you are using. You can inspect the logfile if you want, it's a flat-text file. The logfile is automatically cleared when the program starts, it does not grow to infinity.
Tip: you can use environment variables in the name of the logfile, for example "-l %COMPUTERNAME%.log".

The license of this software is Freeware, you can free download and free use this system optimizer software.