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How to Restore Your M1 Mac if macOS Won't Reinstall

Apple’s first generation of M1 Macs is slick, but some early adopters are running into a strange error that can render a new computer unusable. Those attempting to perform a full restore of macOS on an M1-equipped Mac or MacBook before upgrading to macOS Big Sur might experience a system-stopping warning over and over: “An error occurred preparing the update. Failed to personalize the software up