Final answer:
To factory reset a Mac Mini, back up your data, enter recovery mode by restarting and holding down Command and R, use Disk Utility to erase the disk, and reinstall the macOS operating system.
Step-by-step explanation:
How to Factory Reset a Mac Mini
To factory reset a Mac Mini, you need to restart the computer and enter recovery mode. This process will erase your hard drive, including all personal data and applications, and reinstall the macOS operating system. Here are the steps you should follow:
- Back up any important files or data that you want to save. A factory reset will permanently delete everything on the Mac Mini's hard drive.
- Restart the Mac Mini and immediately hold down the Command (⌘) and R keys on your keyboard. Release the keys when you see the Apple logo or a spinning globe.
- Wait for the macOS Utilities window to appear, and then select Disk Utility. Click Continue.
- Select your startup disk (usually named 'Macintosh HD') and click Erase. You will need to choose a format. Select APFS or Mac OS Extended (Journaled), depending on your system.
- After erasing the disk, return to the macOS Utilities window and choose Reinstall macOS or Reinstall OS X. Follow the on-screen instructions to reinstall the operating system.
- Once the installation is complete, your Mac Mini will restart to a setup assistant. If you're selling or giving away the Mac Mini, you can quit the assistant without completing the setup process.
Remember, a factory reset will remove all data from your Mac Mini, so ensure you have secured your files elsewhere before proceeding.