FOR THE NEWBIES
HOW TO ARCHIVE YOUR DATA FOR SAFEKEEPING
RESTART YOUR COMPUTER AND DURING THE BOOTUP PROCESS FOLLOW THESE STEPS
When the boot screen loads up, press Enter and choose M to get to the method screen. From here you can choose the type of wipe to perform. The stronger the method you use, the longer it will take for the software to complete the wipe. We recommend the DOD 5220.22-M option.
After selecting the method, then select the drive you wish to wipe.
Make sure your data is backed up, then press F10 to start the hard drive wipe process.
Allow the software to complete the process before turning off the machine. This can take hours to days in some cases.