Historically, factory resetting a Mac involved a complex process of booting into Recovery Mode, manually erasing the Macintosh HD volume via Disk Utility, and downloading a fresh copy of macOS over the internet. This process was time-consuming and prone to errors. With the introduction of Apple Silicon (M1, M2, and M3 chips) and Macs featuring the T2 Security Chip, Apple has fundamentally changed how data is erased.
Modern Macs now encrypt storage by default. To erase the computer, macOS simply destroys the encryption keys. This instantly renders all data completely unreadable, returning the Mac to a factory state in minutes without needing to reinstall the operating system. This feature is called “Erase All Content and Settings.”
Requirements for Erase All Content and Settings
To use this modern factory reset method, your Mac must meet two requirements:
- Hardware: It must be an Apple Silicon Mac (M-series processor) or an older Intel Mac equipped with the Apple T2 Security Chip.
- Software: It must be running macOS Monterey (12.0) or later.
Warning: This process permanently destroys all data on the machine. Ensure you have a complete and verified Time Machine backup before proceeding.
How to Erase Your Mac (macOS Ventura and Sonoma)
If you are running macOS Ventura (13.0) or macOS Sonoma (14.0), the System Settings interface closely mirrors iOS.
- Click the Apple Logo () in the top left corner of your screen.
- Select System Settings.
- In the left-hand sidebar, click on General.
- On the right side, scroll down and click on Transfer or Reset.
- Click the button labelled Erase All Content and Settings.
- Enter your Mac administrator password when prompted.
How to Erase Your Mac (macOS Monterey)
If you are running the older macOS Monterey, the option is located within the classic System Preferences menu bar.
- Click the Apple Logo () and select System Preferences.
- Look at the menu bar at the very top of your screen (next to the Apple Logo) and click System Preferences again.
- Select Erase All Content and Settings from the dropdown menu.
- Enter your Mac administrator password.
The Erase Assistant Workflow
After clicking the button and entering your password, the macOS Erase Assistant will launch. You must follow the on-screen steps to safely decouple the machine from your Apple ecosystem.
- The assistant will ask you to back up with Time Machine. If you have already done this, click Continue.
- You will be presented with a list of items that will be securely removed. This includes your Apple ID, Touch ID fingerprints, Apple Wallet cards, and Bluetooth pairings. Click Continue.
- Sign out of Apple ID: You must enter your Apple ID password to disable Activation Lock and “Find My.” This is crucial. If you do not disable Activation Lock, the next owner will not be able to use the computer.
- Click Erase All Content & Settings to confirm the final destructive action.
The Mac will immediately restart and present a black screen with an Apple logo and a progress bar. Because it is simply destroying encryption keys rather than writing zeros to the entire drive, the process usually takes less than five minutes.
Once complete, the Mac will reboot to the standard “Hello” setup screen. If you are selling or giving away the computer, you can safely hold down the power button to turn it off at this point.