How to Enter Safe Mode on Mac

1. Turn on or restart your Mac, then immediately press and hold the Shift key as your Mac starts up.
2. Release the key when you see the login window. ”Safe Boot” should appear in the upper-right corner.
3. Log in to your Mac.

For information and instructions on starting up your Mac in Safe Mode, please refer to this website: https://support.apple.com/en-us/HT201262.