To factory reset a MacBook, first, back up your important files. Then, restart your MacBook and hold down Command + R as it restarts to enter Recovery Mode. From there, choose “Disk Utility” and select your startup disk. Click on “Erase” and confirm the action. Once the disk is erased, exit Disk Utility and choose “Reinstall macOS” from the Recovery Mode menu. Follow the prompts to reinstall macOS and set up your MacBook as new.
