NOTE: Back up your data and create a recovery disk. All data will be gone and can not be restored.
Note: This process works for Windows computers only.
If you’re selling or giving away a Windows computer, you’ll want to wipe the hard drive to remove all of your personal data from it before handing it over to someone new. Simply deleting files or formatting the hard drive isn’t enough, as data recovery software may make it possible to recover the data later. This is done with the DOD 5220.22-m stander. This is the best wipe to Sanitation the hard Drive of all data. This writes 1 (ones) and 0 (Zeros) on the drive 35 times cycles.
NOTE: Back up your data and create a recovery disk. All data will be gone and can not be restored.
This process can take any where from a few hours to a few days.
Once we start the wipe, all of the data on the computer will be gone, including the recovery partition.