Software
How do I reinstall macOS back onto my MacBook ?
MacBook Pro 13″, macOS 11.4
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Mariamtoumaaa Said:
"Software: How do I reinstall macOS back onto my MacBook ?"
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Reinstalling the macOS:
Nothing would be lost. It's just that misplaced items would be placed back to where they should be and corrupt system files would be replaced by clean files. Go Here: Reinstall macOS - Apple Support. Use the third bulleted method: [command + r]. Important: If applicable, prior to the reinstall be sure to back up your Mac with Time Machine, to prevent data loss.