
You may see an error message saying Your computer was restarted because of a problem or You shut down your computer because of a problem after your Mac starts up again.

When there is a software or hardware issue on your Mac computer, the system will restart or shut down the machine unexpectedly. Phenomena & Reasons for Your Computer Restarted Because of a Problem Phenomena

#Fix 6: Use Apple Diagnostics to Diagnose Internal Hardware Issues.

#Fix 5: Disconnect All Devices Except for an Apple Keyboard and Mouse.#Fix 4: Uninstall Plug-Ins or Enhancement Software Not from Apple.Phenomena & Reasons for Your Computer Restarted Because of a Problem.
