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iMac not shutting down properly

Whenever I restart my iMac after having manually shut it down fully, I get a message saying “You shut down you computer because of a problem” and then asks me if I want to reopen all my previous applications.


When I shut down the Mac all looks ok, no error messages or anything and I have tried with all applications closed so potentially there is some system application in the background that isn’t closing down properly.


any ideas how I can identify why this is happening?


iMac 27″ 5K, macOS 12.4

Posted on Sep 5, 2022 9:52 AM

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5 replies

Sep 5, 2022 11:49 AM in response to J_R_D

Give this a try: boot into Safe Mode according to How to use safe mode on your Mac and test to see if the problem persists. Reboot normally and test again.


NOTE: Safe Mode boot can take up to 3 - 5 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files



Sep 5, 2022 10:13 AM in response to J_R_D

Pay attention to the hard drives during the shutdown process.


If everything seems ok, when it happens next boot up.


  • Select the pop up that states computer shutdown issue, it will present question to ignore or report.
  • Select report to Apple, as this is not normal.


Make sure your system is up to date, and all apps too thru the App Store.

Sep 6, 2022 1:42 AM in response to supercondr

Thanks for your reply. The hard drives seem fine.


The message I get doesnt give the option to Ignore/Report.. Only Cancel and Open.


”You shut down your computer because of

a problem.

If you want to open the applications that were open when

you shut down, click Open.

If you do nothing, the computer will continue the login in

44 seconds.


Cancel/Open"

iMac not shutting down properly

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