need a program that will over write the current binary data on the harddrive
In the past I've used this method on computers at work:
Step 1. deleted all my files
Step 2. filled up my harddrive with copies of the same big file
Step 3. de-fragged the drive
Step 4. deleted the files
Step 5. Repeated steps 1-4 four or five times
My employeer frowns upon kinetically erasing the harddrive with lead pellets.
-Blast