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O&O Defrag 10 Professional is an advanced, simple-to-use disk defragmentation software that comes with a multitude of important functions that you won’t find with other defragmentation software including (of course!) the default Windows defragmentation tool.
O&O Defrag 10 uses five different methods of defragmentation on partition of any size or number that supports defragmentation of all Windows supported disks (RAID, removable disks, memory cards etc.).

Other key features are the automatic scheduling functionality aka O&O OneButtonDefrag Technology that determines automatically the optimal defragmentation settings for your system and chooses the perfect moment to run its next defragmentation. Meanwhile, the Screensaver Mode gives you the ability to activate O&O Defrag whenever Windows has activated its screensaver.
To grab yourself free license serial key for O&O Defrag 10 Pro, simply visit this promotional page. Enter your details with valid email address and submit the form. Your free license serial key will be sent direct to your email inbox. The setup installer for O&O Defrag 10 Pro can be downloaded here.
O&O Defrag 10 Pro is compatible with Windows 2000, XP and Vista.
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Hi Steve,
just want to know how good is O&O Defrag 10 Pro compare to Tune Up 2009 (defrag function) ?
Thanks
Hello Hans,
As far as I’m aware TuneUp simply uses the normal Windows Defrag program but through its own GUI, O&O is much better as it does whats called a “low-level” defrag that yields much better results.