Reformatting a computer wipes the data stored on its hard drive, allowing for a clean installation of the system and programs. (In fact, you are technically reformatting the hard drive, so ...

If you're ready to replace your old PC and hand it down to a friend or family member, you'll need to wipe your data and reset it. Follow these instructions to make sure you do it the right way.

For businesses, reformatting a computer's hard drive is often a necessary evil; viruses and spyware, for example, can devastate the operating system and the only option left is to start over fresh.