MyDefrag is a freeware disk defragmenter and optimizer for Windows. It is fast, efficient, and can handle both physical hard disks and various removable media formats (such as floppies, USB flash drives, and other devices detected as a disk in Windows).
It includes an easy to use graphical user interface with a set of pre-compiled scripts (daily, weekly, and monthly optimization), a script engine that can be tailored to meet the needs of advanced users, a screensaver utility, and a command line application that can be scheduled by the Windows Task Schedule for administrative use. MyDefrag is based on the standard defragmentation API included with Windows, and is safe to use.
MyDefrag supports Microsoft Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 in both 32-bit and 64-bit architectures where applicable.
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Download: MyDefrag 4.2.9