Once year, things freeze up, mouse etc, and hard force quit with button on imac.
But first time this annoying window came up asking if I would like to shut down. Nothing worked, corded mouse, even white Mac bluetooth mouse, no keyboard, so had to unplug the computer to reboot which had not done in 10 years.
But why could I not just use the computers on off button, is this a new nuisance?
