Before you say goodbye to one of your Apple devices, you need to factory reset your machine, erase all your personal data, and reinstall a fresh copy of the operating system. If you are ready to sell, trade, or give away your Mac, then it is time to reformat. Perhaps you have a new Mac (like a new Apple silicon based Mac), and it is time to pass on your old computer to a new owner. There are many legitimate reasons to reformat your Mac. If you think you may still need what is on your hard drive, we advise you to first back it up through Time Machine or by syncing important files to iCloud.Don’t worry if it is time to start over. Here's how to erase your hard drive and reinstall the operating system on your Mac, whether it has Apple's M1 chip or features Intel components.īe aware that once your computer has been reset, you will no longer be able to recover any deleted data that was left on the drive. And with the jump to macOS Monterey, certain computers gain a new option to erase all content and settings. The process has been the same for years on Macs with Intel processers, however, the move to Apple silicon has slightly altered the method for wiping and reinstalling the OS. A factory reset is also the best way to prepare your old computer for a new owner to make sure no leftover data falls into the wrong hands. Before you spend big on a new Mac, though, try a factory reset, which wipes your computer and reinstalls a clean version of macOS. But as with any computer, sometimes things go wrong.

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Erase macbook to factory settings