How to Wipe Your PC Clean

Wiping the contents of your computer clean is a smart idea before selling or disposing of your old computer by removing sensitive data from the hard drive before it can be intercepted. Accomplish this by formatting your system hard drive with the tools within your operating system, deleting all of the contents of your PC in less than 30 minutes.

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Insert the boot disk into the PC.

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Restart the PC. Press any key when prompted to boot into DOS.

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Type "format x:" and press "Enter," replacing "x" with any of your hard drive letters.

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Press "Y" to confirm.

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Repeat the procedure for the rest of the hard drives on your machine.