In this video tutorial, viewers learn how to completely format a hard drive. Begin by downloading the Knoppix Live Boot CD. Then burn the newly download ISO onto a CD as a bootable disc. Use your BIOS to tell your computer to boot from the CD-ROM instead of the hard drive. With the Knoppix CD still in your CD drive, restart your computer to load up Knoppix. Once loaded, use Knoppix to run the "dd" command and reformat your hard drive. This video will benefit those viewers who want to learn how to reformat their computer because of situations such as: installing a new operating system, re-installing an old operating system, virus or security.