Start up your Mac in safe mode
Starting up your Mac in safe mode may help you diagnose problems with your Mac.
- On your Mac, choose Apple menu > Shut Down.
- [After your Mac shuts down, wait 10 seconds, then press the power button.
- Immediately after your Mac starts (some Mac computers play a startup sound), press and hold the Shift key.
- Release the Shift key when you see the gray Apple logo and progress indicator.
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To leave safe mode, restart your Mac again, but donʼt press and hold any keys during startup.