The drive might be recycled into another computer, donated to charity or simply sold off -- but whatever its fate, it's good common sense to wipe it clean before putting it into anyone else's hands.
Reformatting the hard drive can be a tedious operation, especially if it's the only drive in the system and Windows doesn't allow you to format its own system disk. Bardissi Enterprises will make it easy to wipe a system clean.
From drive to metal: complete destruction, along with a letter of destruction and of course, peace of mind!