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Level 1

12 points

Application won’t close while trying to install Sierra

I am just now trying to install Sierra on my 13 inch 2013 Mac air. But I can’t close an ap.

Posted on Jun 19, 2021 4:43 PM

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Level 8

42,620 points

Posted on Jun 19, 2021 11:51 PM

Have you tried to Force Quit the app, click on the top left of your screen click on Force Quit.

Select the app and press Force Quit.

What happens if you simply Restart the mac, does the app automatically start up at login.

Open System Preferences> Users & Groups> Login items if that app appears there

highlight it and press the minus button to remove it.

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