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UltraDefrag is an open source disk defragmenter for Windows NT 4.0 and later operating systems. It is very fast, because the defragmenting is done by kernel-mode driver. UltraDefrag makes use of the same defragmenting API used by many other windows defrag utilities, both open and closed source. However, UltraDefrag has many features that makes it unique. Firstly it has a kernel mode driver that does most of the work, secondly is the ability to run the application at boot up time in a manner similar to chkdsk. This allows for faster defragmentation time and the ability to defragment all files including system files. It can also defrag single file or multiple directory and can generate a list of all fragmented files. The program is available for both 32bit and 64bit version of Windows running on both AMD and Intel based processor. There are three interface available: Graphical, Console and Native. The UltraDefrag Micro Edition is a special package for advanced users who prefers extreme stability and power.


UltraDefrag has the following features:
• Defragmentation algorithm was completely rewritten to be more effective. Click To know more about the algorithm. Now UD is more reliable and effective.
• Very fast defragmentation, the work is done via a kernel mode driver which has an optimal defraging algorithm.
• Single file or directory defragmentation ability. Select any file or folder in Explorer and choose the appropriate context menu item to defragment them.
• Debug logging feature - Program writes debugging information to %windir%\UltraDefrag\logs directory. That means if your windows is installed in drive "C" and directory name is "Windows", then logs can be found in C:/Windows/UltraDefrag/Logs.
• Very small engine written in pure C.
• PortableDefrag can be installed on demand which can be carried around in USB storage devices and used without any installation.
• and much much more....

Whats New
• volume optimization algorithm was highly improved
• fragments threshold filter parameter was added
• UD_TIME_LIMIT option was added
• portable version was highly improved
• few little bugs were fixed
• now the program is much more compatible with Vista and later versions of Windows; this is achieved by adding the User Mode Driver to it
• program's reliability increased by removing error handlers caused infinite loops
• now the program can be used in Windows Safe Mode when the user mode driver is enabled
• since this version native 64-bit binaries aren't available due to the C compilers internal bugs (Windows DDK, Windows SDK, Pelles C, MinGW x64 were tested); portable UltraDefrag can be used now on all of the 64-bit systems instead of the native 64-bit packages
•NOTE FOR PROGRAMMERS: to successfully compile the user mode driver run configure.lua script, check 'Apply patch to MinGW' box and click OK once again

Download: UltraDefrag


Single Day Event On: 12/4/2009



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