Issue Description
Mac must be safely prepared before handing over to Apple, a buyer, or service provider.
Common Causes
- Data privacy concerns
- Activation Lock enabled
- Leftover personal data
Step-by-Step Solution
Step 1: Back Up Your Data
- Create Time Machine backup
- Verify backup completes
Step 2: Sign Out of Apple ID
- System Settings → Apple ID → Sign Out
- Disable Find My
Step 3: Erase All Content and Settings
- System Settings → General → Transfer or Reset
- Select Erase All Content and Settings
Step 4: Shut Down or Reinstall macOS
- Leave Mac at setup screen for new owner
Explore Further
- Remove devices from Apple ID online
Prevention & Best Practices
Never sell a Mac without erasing data.