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Question: Cannot shut down my iMac.

It is stuck in "closing library" and I am not able to Quit Photos.

iMac, macOS Sierra (10.12.3)

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Have you tried shut down by pressing and holding power button down

to force shut-down that way? ~ Some users have chosen to set up the

Mac so that may restart the computer, if only held down short duration.


{Or with Mac 10.9.5 or later, pressing the Power Button briefly makes it Sleep.}


How to turn your Mac on or off - Apple Support

If you can't shut down your Mac because it isn't responding, you can force

it to turn off without shutting down. ... in Apple Support Communities.

User uploaded filehttps://support.apple.com/en-us/HT201150


When you turn it back on, you may consider restart in Safe mode so it

may check system files and perhaps attempt a few checks/repairs:

• Use safe mode to isolate issues with your Mac - Apple Support

User uploaded file

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Question marked as Apple Recommended

Mar 17, 2018 2:53 AM in response to nightingayle In response to nightingayle

Have you tried shut down by pressing and holding power button down

to force shut-down that way? ~ Some users have chosen to set up the

Mac so that may restart the computer, if only held down short duration.


{Or with Mac 10.9.5 or later, pressing the Power Button briefly makes it Sleep.}


How to turn your Mac on or off - Apple Support

If you can't shut down your Mac because it isn't responding, you can force

it to turn off without shutting down. ... in Apple Support Communities.

User uploaded filehttps://support.apple.com/en-us/HT201150


When you turn it back on, you may consider restart in Safe mode so it

may check system files and perhaps attempt a few checks/repairs:

• Use safe mode to isolate issues with your Mac - Apple Support

User uploaded file

Mar 17, 2018 2:53 AM

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User profile for user: nightingayle

Question: Cannot shut down my iMac.