I was going through System Preferences, trying to get a separate program that I downloaded today to work, and I opened iCloud in System Preferences. Since then, I have been unable to shut down my computer (although I tried letting it run out of battery, which didn't help), unable to access anything else in System Preferences, or quit the app in general.
Below are two screenshots of the issue.
Thank you for your help.
MacBook Pro
Posted on Aug 10, 2015 8:03 PM