To securely erase all data from your Mac, start by ensuring it’s backed up using Time Machine and connected to power and the internet. For macOS Ventura or later, go to the Apple menu, open System Settings, click on General, then Transfer or Reset, and select Erase All Content and Settings. Enter your administrator password, follow the prompts to sign out of Apple services, and confirm the erasure. For macOS Monterey, navigate similarly through System Preferences to Erase All Content and Settings, then complete the process. Your Mac will restart and display a progress bar, and if you’re keeping it, reconnect accessories and Wi-Fi to activate it.
Summary:
– Backup and Preparation: Back up your Mac using Time Machine, and ensure it’s connected to power and the internet.
– Erase in macOS Ventura or Later: Go to Apple menu > System Settings > General > Transfer or Reset > Erase All Content and Settings. Enter your admin password and follow the prompts.
– Erase in macOS Monterey: Go to Apple menu > System Preferences > Erase All Content and Settings. Enter your admin password and follow the prompts.
– Activation and Reconnection: After erasure, your Mac will restart. If keeping it, reconnect Bluetooth accessories and Wi-Fi.
– Final Steps: Your Mac will be restored to factory settings, ready to be set up again.