Has anybody else had that problem or know what can be done to enable the needed optimization to complete if one needs to shut down the mac in the meantime as the box only gives "Close" as an option + a warning that "performance may be affected until completed".
Mac mini, OS X Yosemite (10.10)
Restart the computer and see whether there's a change.
Just close it. It’s a notification, not a progress indicator.
Restarting the computer did work to stop the notification from showing so that also seems to confirm Barney's input as to it being a notification only & not a progress indicator which would explain why "Close" was the only option showing. SO THANKS FOR BOTH YOUR GREAT & HELPFUL REPLIES which enabled me to shut down my computer without concerns that the optimization might get interrupted at a harmful point.
I believe the other answer was correct, not mine.
I agree that Barney's input that the message was just a notification & not a progress indicator & hence that was it was fine to close proved to be the correct & complete answer, but due to having first posted your initial reply as the correct answer (as it did solve the problem also), the system seems to only post the rest of my replies as "this helped me" despite my clicking on the "correct answer" button even now in response to your 2nd reply & I can't find a way to change that status once posted.
"optimizing your mac" still showing 1 week after upgrading mac mini to OS 10.10 from 10.9
