DriveScrubber

Reformatting is not enough. Protect your personal information when you sell, donate, or recycle your computer. DriveScrubber permanently erases your hard drive data, exceeding security standards set by the US Department of Defense and ensures that your private files will not be recovered. Erase the entire hard drive, or wipe just the free space on your hard drive to delete file remnants but leave the operating system and applications intact. DriveScrubber also cleans and restores damaged or infected drives.

Limitations:

3-use trial