Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

iMac restarts after shutdown since update to Big Sur

iMac restarts after shutdown since updating to Big Sur. How do I fix this?

iMac 27″, macOS 11.5

Posted on Sep 10, 2021 6:36 AM

Reply

Best reply

Level 9

65,330 points

Posted on Sep 10, 2021 7:11 AM

Restart in Safe Mode, then shutdown. Does it still restart?

Try resetting SMC and NVRAM.

View in context

Similar questions

iMac keeps restarting after going to sleep after Big Sur update Not sure what the issue is. Every time I login it says the iMac restarted because of a problem. iMac 5K, late 2015
275 2
My iMac keeps shutting down and restarting after installation of MACOS Big Sur version 11.3 update My iMac keeps shutting down and restarting after installation of MACOS Big Sur version 11.3 update
5383 11
Mac restarts because of problems? I have a MacBook Pro (Retina, 15-Inch, Mid 2015) that restarts at least once or twice a week by itself. I run MacOS Big Sur 11.4. Can someone please help me identify the problem? Thanks!
519 1

1 reply

Best reply

Level 9

65,330 points

Sep 10, 2021 7:11 AM in response to CrazyDogChick

Restart in Safe Mode, then shutdown. Does it still restart?

Try resetting SMC and NVRAM.

Reply

iMac restarts after shutdown since update to Big Sur

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple ID.

Learn more Sign up