My iMac won't shut down

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My iMac won't shut down

My iMac won't shutdown, it will clear my desktop and that's it. I have a 2015 iMac with OS X EI Capitan 10.11.6. Any suggestions?

iMac 21.5″, OS X 10.11

Posted on Oct 15, 2021 5:38 PM

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Answer 1

Oct 15, 2021 5:55 PM in response to MN1509

Long-press (10s or so) the power button, to force a hard shutdown.

That iMac is a good candidate for an upgrade to at least Mojave, too.

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Answer 2

Oct 15, 2021 5:50 PM in response to MN1509

To turn the iMac off, press and hold the power button until the computer shuts down.

At that point, disconnect the power cable, wait 30 seconds, reconnect the power cable and restart the Mac. With luck this will reset certain systems and the Mac will perform normally again.

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My iMac won't shut down

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