What happens in Safe Mode Safe Mode is designed to launch your computer with the minimum necessary software to give you access to your operating system, such as Windows or MacOS.

Keep reading to learn how to start your Mac in Safe mode. How to Use Your Mac's Safe Mode Power on or restart your Mac, then immediately press and hold the Shift key as your Mac starts up.

His Mac always seems to boot into Safe Mode He writes: The Shift key gets pressed automatically only [on my MacBook Pro] during startup, and it start up to Safe Mode. After that, the Shift works.