Reset Mac to Factory Settings: Full Guide

To reset a Mac to factory settings, back up anything you need, erase the Mac with Erase Assistant or Disk Utility, and reinstall macOS if required. The correct method depends on the macOS version and whether the Mac has Apple silicon or an Intel processor.

What should you do before resetting a Mac?

Resetting a Mac to factory settings permanently removes personal files, accounts, apps, and settings. Complete these checks before you erase anything:

• Back up important data with Time Machine or copy needed files to external storage. Open a few files from the backup to confirm that it works.
• Keep the Mac connected to power and make sure a reliable internet connection is available. Recovery may need internet access to activate the Mac or reinstall macOS.
• Open the Apple menu and select About This Mac. Note the macOS version and whether the window lists a Chip or Processor.
• Have the password for the Mac administrator account and the Apple Account associated with the Mac.
• If you will use Disk Utility instead of Erase Assistant, sign out of your Apple Account in System Settings or System Preferences when possible. Also sign out of services such as iMessage if the Mac is leaving your possession.

Do not continue until every file you want to keep exists somewhere other than the Mac being erased.

How can you tell whether a Mac uses Apple silicon or Intel?

Apple silicon means an Apple-designed processor identified by a name such as M1, M2, M3, or a later M-series chip. Intel Macs use processors made by Intel.

1. Open the Apple menu in the upper-left corner.
2. Select About This Mac.
3. Look for Chip or Processor. A Chip entry naming an Apple chip means the Mac has Apple silicon. A Processor entry naming Intel means it is an Intel-based Mac.

This distinction matters because Apple silicon Macs enter macOS Recovery by holding the power button. Intel Macs use startup keyboard combinations.

How do you enter Recovery Mode on each Mac type?

macOS Recovery is the built-in environment used to erase the startup disk, repair storage, and reinstall macOS.

On a Mac with Apple silicon:

1. Shut down the Mac completely.
2. Press and continue holding the power button. On a Mac laptop with Touch ID, the Touch ID button is also the power button.
3. Release the button when startup options or an Options icon appears.
4. Select Options, choose Continue, and follow any prompts to select a disk or administrator account.

On an Intel-based Mac:

1. Shut down the Mac.
2. Press the power button, then immediately hold Command-R.
3. Release the keys when the Apple logo or a spinning globe appears.
4. Select a network, startup volume, or administrator account if requested.

Command-R normally opens the built-in Recovery system. On an Intel Mac, Option-Command-R starts Internet Recovery and offers the latest compatible macOS, while Shift-Option-Command-R may offer the original macOS version or the closest version still available.

How do you erase a Mac completely?

Use Erase Assistant when Erase All Content and Settings is available. It is supported on macOS Monterey 12 or later on Macs with Apple silicon or the Apple T2 Security Chip.

For macOS Ventura 13 or later:

1. Open the Apple menu and select System Settings.
2. Select General, then Transfer or Reset.
3. Select Erase All Content and Settings.
4. Enter the requested passwords, review the items being removed, and follow the prompts.

In macOS Monterey 12, open System Preferences and choose Erase All Content and Settings from the System Preferences menu in the menu bar.

If that option is unavailable, use Disk Utility from macOS Recovery:

1. Select Disk Utility in Recovery and choose Continue.
2. Select Macintosh HD in the sidebar. If necessary, choose View, then Show All Devices.
3. Select Erase. Use Macintosh HD as the name and the format recommended by Disk Utility, normally APFS on current systems.
4. Select Erase Volume Group if that button appears; otherwise, select Erase.
5. When erasing finishes, quit Disk Utility to return to the Recovery window.

Choose the internal startup volume carefully. Erasing an external backup disk by mistake may destroy the only remaining copy of your files.

How do you reinstall macOS after erasing the Mac?

Erase Assistant keeps the currently installed operating system, so a separate reinstall is generally unnecessary. Disk Utility removes the startup volume, so macOS must be reinstalled before the Mac can start normally.

1. Return to the utilities window in macOS Recovery.
2. Connect to Wi-Fi or a wired network and keep a Mac laptop connected to power.
3. Select Reinstall macOS, then Continue.
4. Accept the prompts and select Macintosh HD when asked for the installation destination.
5. Allow the Mac to restart without closing the lid or interrupting power.

When Setup Assistant appears, complete the setup if you are keeping the Mac. If another person will receive it, shut it down at the initial setup screen so that person can enter their own information.

What should you do when a Mac reset does not work?

• Recovery does not open: Shut down fully and try again. On an Intel laptop, use the built-in keyboard and press the keys immediately after powering on. Try Internet Recovery if Command-R fails. Disconnect nonessential accessories.

• The Apple Account password is forgotten: Use Apple’s account-recovery process before erasing. Activation Lock may prevent setup when the Mac remains linked to an account, and repeated guessing will not remove that lock.

• Erasing appears frozen: Keep the Mac connected to power and wait if progress is still changing. If the screen remains unchanged, restart into Recovery and try Disk Utility again. Do not repeatedly force a shutdown while storage activity is visible.

• Macintosh HD is missing: In Disk Utility, select View and Show All Devices. Shut down, unplug nonessential devices, and reopen Recovery if the internal storage still does not appear.

• Reinstallation cannot connect: Try a simple home network or a wired connection. Networks requiring a browser sign-in may not work in Recovery.

How can you get official Apple support for a failed Mac reset?

Open {site} and look for Mac support, Apple Account recovery, or repair options. Use Apple’s official support flow if Recovery never appears, the internal disk is missing, erasing repeatedly fails, or Activation Lock remains after you recover the correct account.

Have the Mac model, serial number, macOS version, and exact error message ready. Never share an Apple Account password or device passcode with anyone who contacts you unexpectedly.