
Eraser, a free software program, replaces and randomizes the 1's and zero's on your hard drive, completely destroying any previous disk image so that no one can retrieve the information on your hard drive. Eraser is a tiny program. You can fit it onto a floppy--which helps when you want to create what they call a "Boot Nuke Disk". This allows you to boot from the floppy and erase all the information on a given computer. You can also use Eraser to schedule regular clean-ups of the unused space on your disk.
Download Eraser