Eraser - Eraser is an advanced security tool (for Windows), which allows you to completely remove sensitive...
SDelete - Securely overwrite your sensitive files and cleanse your free space of previously deleted files using this DoD-compliant secure delete program.
BCWipe - Use BCWipe, Jetico's solution to wipe files, wipe Data Remanence, wipe free space beyond forensic recovery, including responding to classified data spill.
Darik's Boot and Nuke - Erase hard drives, desktops, laptops or servers free with a Darik's Boot and Nuke (DBAN) download. Try it now.
Alternate File Shredder - File shredding program; great alternative to Eraser.