Hard Disk Cleaner How To Securely Wipe
Hard Disk Cleaner Download The Recovery

Dont just delete your user profile and call it a dayyoull want to completely wipe it.

Even if you dont intend on wiping your drive, its a good idea to back up before re-installing your operating system.

Shut down your Mac, turn it on while holding down CommandR.

Your Mac will boot into the recovery partition.

On those devices, hold Option while turning your computer on, then select the recovery partition instead.

Hard Disk Cleaner Download The Recovery

You can access recovery without a partition using Network Recovery: hold CommandShiftR while turning on your Mac and it will download the Recovery features for you.

Failing that, you can create a bootable USB installer for macOS Sierra, and boot from that by holding Option while turning on your Mac.

Your user accounts and files will stay exactly where they areonly your operating system will be overwritten.

We recommend backing up files before you do this, just in case, but otherwise youre ready for step three.

Hard Disk Cleaner How To Securely Wipe

Weve shown you how to securely wipe a hard drive with your Mac, and doing so in Recovery Mode isnt really different from doing so within macOS.

You still need to wipe the drive, however, or your files will remain in place, so skip to the end of this step to do so.).

You only need to write over a drive once to securely wipe it, but if youre paranoid you can also wipe it three or five times.

Just give your drive a name (I recommend Macintosh HD, just for consistencys sake), then click Erase to start the overwriting process.

If you booted from a functioning recovery partition, click the Reinstall macOS button.

Eventually your Mac will restart and ask you to create an account.

If youre giving your Mac away, or selling it, I recommend that you simply shut down at this point and let whoever youre giving your Mac to create their own account.

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Mac Hard Disk Cleaner