If you aren’t running Catalina then you only need to delete the Macintosh HD volume. Note that the process here is slightly different if you are running macOS Catalina or Big Sur. You may need to click on View > Show All Drives before you can see the volume. Now select the volume you wish to Erase.Select Disk Utility from the options in Recovery mode.If you have a Mac with an Intel processor that doesn’t also have a T2 chip and you want to delete the data on your Mac’s hard drive you need to use Disk Utility accessed via Recovery mode (you have to access the drive via Recovery because it’s not possible to delete the drive when you are accessing it). If you have already erased your Mac the next step will show you how to enter Recovery mode.

Unfortunately if your Mac doesn’t have Monterey installed or doesn’t have a T2 or M-series chip then you need to use Disk Utility to delete your Mac. Once your Mac restarts you can go through the steps to set it up as new, or you can leave it at this stage for the next owner to set up.Eventually you will see a black screen while it restarts.

Having clicked the second Erase All Content & Settings your Mac will restart.

Before your Mac is erased you receive a final warning, so if you have second thoughts at least you can stop at this point!.

Finally you will need to log out of your Mac and all related services using your Apple ID.A window will show you what will be deleted, including Apple ID, Touch ID, accessories, and Find My settings.You’ll be reminded to do a backup with Time Machine before you begin deletion–but you can skip that step.Click on Erase All Content and Settings.Click on System Preferences in the menu bar at the top of your screen.We detail how to erase your Mac using this method in a separate article, but here is a summary: If you have an Intel Mac you will need to work through the steps below to erase your disk before you can begin. If you are running macOS Monterey or a later version of macOS on a Mac with an M-series chip, or an Intel-powered Mac with a T2 chip (some Macs since 2018), there is a very simple way to erase your Mac that doesn’t require you to use Recovery mode and Disk Utilities. (If you don’t want to erase your data skip this step). If you are planning to sell or pass on your Mac, or you want to do a clean install of macOS to solve issues with your Mac, you will want to erase your hard drive before reinstalling the operating system.

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