If you are upgrading or replacing a Mac hard drive and you dont have an operating system, this video will. 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. Many Mac hard drives break down and stop working. The Pentagon is even more paranoid: they use seven passes.
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. 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. It also offers Drive Wiper to remove everything from your hard drive. CCleaner is widely use for removing junk, hidden, temporary, duplicate files to remove unnecessary data from your computer.
#MAC WILL NOT ERASE PROTECTED HARD DRIVE FOR NEW INSTALL SOFTWARE#
You’ll see a sliding scale with four options: CCleaner is another one of the top-rated software recommended to wipe out hard drive data. 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.
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