In the Recovery app window, select Reinstall for your macOS release, click Continue, then follow the onscreen instructions. Choose Apple menu > Shut Down, press and hold the power button until “Loading startup options” appears, select Options, click Continue, then follow the onscreen instructions. Click on the format you want to use for your drive.Click on your startup disk in the Disk Utility sidebar.
How to erase your startup disk in macOS Recovery mode The Mac will restart on its own, and the new lock screen will appear. The lock command will go through the next time the Mac goes online. Tip: A locked Mac cannot be remotely erased, so only lock your Mac if you’re confident you can recover it. This clears user settings from memory and restores certain security features that might have been altered. Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. How do I restore IMAC to factory settings? Once the process is complete, select ‘Quit Disk Utility,’ to return to the main macOS Utilities window. Disk Utility will now wipe your hard drive.Select the volume that you want to erase.How do I wipe my Mac without recovery mode? Enter recovery key in password field and click “Unlock”.Select startup disk in left-hand sidebar and click “Mount”.Select “Disk Utility” and click “Continue”.On the client Mac, start up from macOS Recovery by holding Command-R during startup.To unlock and access the startup disk’s FileVault-encrypted data: Erasing your Mac permanently deletes its files. What happens if you erase Disk Utility Mac?īefore erasing your Mac Make a backup of any files that you want to keep. Before the erasure begins, you’re asked to select a disk format. In this case, reboot and hold down Command (⌘) – R again to boot into the Recovery partition. If you’ve booted from the startup disk rather than the Recovery partition, the Erase button is grayed out and cannot be pressed. Why is erase greyed out on Mac Disk Utility? How can I erase a drive in Disk Utility?.How to erase or reformat a drive in macOS?.What do you do when you erase a volume on a Mac?.Is there a way to erase all devices on a Mac?.How do I restore my Mac to factory settings without command r?.How do I restore IMAC to factory settings?.How do I wipe my Mac without recovery mode?.What happens if you erase Disk Utility Mac?.Why is erase greyed out on Mac Disk Utility?.
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