The Security button and set the ZeroData option to one-pass. Set the format type to Mac OS Extended (Journaled.) Optionally, click on Click on the Erase tab in the DU main window.ģ.

After DU loads select your startup volume (usually Macintosh HD) from the Select Disk Utility from the main menu and click on the Continue button.Ģ. Select the Recovery HD and click on the downward pointing arrow button.ġ. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears.

Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. (If you happen to be doing this on an Apple Silicon machine, instead hold the power button and choose 'options' from the menu screen.Install or Reinstall Mavericks, Lion/Mountain Lion from Scratchīe sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive. Turn on your Mac, and hold Command ⌘ and R until the Apple logo pops up.

To erase your MacBook this way, you'll need to go into macOS Recovery and proceed from there. Since most Apple Silicon Macs can upgrade to Ventura or later, this is primarily for older Intel Macs without either Apple's processors or T2 security chips. To reset a MacBook without the 'Erase All Content and Settings' option, you'll have to take more drastic steps. But if your Mac doesn't have the Erase All Content and Settings Option (particularly if it's not on macOS Monterey or newer, or is an older Intel Mac), you may have to resort to the nuclear option. If you're ready to hand it down, sell it, or trade it in, you can just turn it off.įor most people, this will be enough. When this is done, your Mac will activate and restart.Īt this point, you'll be able to set up your MacBook like new, as if you were turning it on for the first time.

How to factory reset a macbook pro os x