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The command has the ability to analyze the file fragmentation on a disk drive or to defragment a drive. This command is called DEFRAG in MS-DOS/PC DOS and diskopt in DR-DOS . The command is available in MS-DOS versions 6 and later.
JkDefrag is a free open-source disk defragmenting utility computer program for Windows.It was developed by Jeroen Kessels (initials "JK", hence the name) beginning in 2004 [1] and was released under the GNU General Public License.
Auto defrag when idle Stable release; Auslogics Disk Defrag Auslogics Freeware: FAT16, FAT32, NTFS Windows XP and later Yes Yes Yes Yes Yes
You can defrag your PC automatically by choosing "defragment and optimize your drives" in the Admin Tools section of your system preferences. Have a Mac? Those don't need to be defragmented ...
Unlike the Windows built-in defragmenter tool, Contig can defragment individual files, individual directories, and subsets of the file system using wildcards. Contig does not move any data except that belonging to the file in the question, so the amount it can defragment a file is limited to the largest contiguous block of free space on a system.
In Windows Vista, Disk Defragmenter includes an option to automatically run at scheduled times using Task Scheduler and uses low CPU priority and the newly introduced low priority I/O algorithm so that it can continue to defrag using reduced resources (less CPU and disk read/write activity) when the computer is in use.
Drives run cooler, and that may be important in hot weather. I use VOPT regularly even when my disks are not full. Highly recommended. [9] Version 7 is the only commercially available defrag program still supporting 16-bit Windows. Users upgrading from Windows 95 to Windows XP have been able to retain the use of their existing package.
Diskeeper Administrator is also available to manage Diskeeper options as well as perform advanced installations. Version 10 was the last version available for Windows 9x. After version 10, Diskeeper versions followed the year based naming convention, that is, 2007, 2008 and so on.