JkDefrag is based on the standard defragmentation API by Microsoft, a system library that is included in Windows 2000, 2003, XP, and Vista. All defragmenters are based on this API, including commercial defragmenters. JkDefrag is therefore very solid and there is no risk of losing data.You can stop the program at any time, it will finish the current file in the background. If your disks use NTFS then you´re even safe when the computer crashes in the middle of defragging.
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File Size = 402 KB
