macOS

How do I start a Mac in Safe Mode?

Updated 2026-08-14

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Quick answer

To start a Mac in Safe Mode, hold down the Shift key immediately after turning on or restarting the Mac until you see the login window.

Starting your Mac in Safe Mode can help troubleshoot issues by preventing certain software from loading.

Steps

  1. 1

    Shut Down Your Mac

    Click on the Apple menu in the top left corner and select 'Shut Down'. Wait for your Mac to completely power off.

  2. 2

    Power On and Hold Shift

    Turn your Mac back on and immediately press and hold the Shift key until you see the login window.

  3. 3

    Log In

    Release the Shift key when you see the login window. You may need to log in twice if FileVault is enabled.

What is Safe Mode?

Safe Mode is a diagnostic mode in macOS that starts your Mac with the minimum required software and drivers. It can help isolate issues related to startup items and extensions.

When to Use Safe Mode

Use Safe Mode if your Mac is experiencing performance issues, crashes, or if you need to troubleshoot problems with applications or system settings.

Watch out for

  • Safe Mode may not resolve all issues, and some problems may require further troubleshooting.

FAQ

What should I do if my Mac doesn't start in Safe Mode?

If your Mac doesn't start in Safe Mode, try restarting it and holding the Shift key again. If it still fails, there may be a hardware issue or a problem with your macOS installation.

Can I use all my applications in Safe Mode?

No, some applications and features may not be available in Safe Mode, as it limits what software runs during startup.

How do I exit Safe Mode?

To exit Safe Mode, simply restart your Mac without holding any keys during startup.