SD Memory Card Formatter Download for Windows/Mac. When you’ve picked how many wipes you’d like to run, click “OK,” then click “Erase” back at the initial prompt. The protected area shall be formatted by an appropriate PC application or SD host devices that provide. Seven passes is going to take a long time, and even three passes will take at least an hour, so only use these options if you’re really, really paranoid. Even though using the Disk Utility tool to format your USB drive on Mac is a. The Pentagon is even more paranoid: they use seven passes. You should back up your Mac before trying to erase or reformat it. But three passes is what the US Department of Energy uses to securely delete their files. 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. Right-click on the hard drive icon and select Properties. That’s not what we want, so let’s move the slider. You can direct Disk Cleanup to delete some or all of those files. 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.