Drive Scrubber Software For 3 PCs Linky
-Erase data so it can never be recovered
-Permanently erase private files, pictures or documents
-Securely wipe all drive data before selling, donating or recycling your PC
-Restore your drives to like-new after virus or spyware damage
-Wipes PC drives, flash drives, cameras and more.
how about these completely free alternatives
*depends on what hard drive you have
1)http://www.hitachigst.com/hdd/support/download.htm#DFT
2)http://www.samsung.com/global/business/hdd/support/utilities/Support_HUTIL.html
3)http://www.seagate.com/www/en-us/support/downloads/seatools
4)http://support.wdc.com/product/download.asp?lang=en