RELATED: You Only Need to Wipe a Disk Once to Securely Erase ItĪs we’ve discussed before, you probably only need one pass, at least with modern hard drives. The first notch to the right of “Fastest” writes over the entire drive with random data once the third notch, three times. That’s not what we want, so let’s move the slider. The first option, “Fastest,” will delete the partition but leave all files untouched.
You’ll see a sliding scale with four options: Click the “Security Options” button on the bottom. Make sure you click the drive you want to securely delete: you do not want to erase some other hard drive by mistake! When you’re ready, click the “Erase” button. Connect the drive you want to securely delete, then click it in the sidebar.
