Can you and if so how do you wipe all the information off your hard drive?

Question

I was wanting to know if you can wipe all the information off your hard drive and how to do it, and can you use it again as if its a totally new hard drive.

Answer 1

Well there are numerous ways to "wipe" your hard drive.
1). You can reinstall windows on that hard drive by formatting the drive.
2) you can get a program called DiskDeleter for $39.99 to
Erase Hard Drive Permanently

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DiskDeleter supports DOD5220.22-M, which is the guideline published by the US Department of Defense for erasing hard drives to guarantee that all data previously contained on a drive is deleted permanently.

Answer 2

you can made clean installation from your operating system. But let me tell you that if you delete all of the hard disk, there is away the professionals can return back. Like computer forensic experst, penetration testers and so on.