W will0407 macrumors 6502a Original poster Nov 20, 2016 #1 So my Dad's late 2012 imac is running Yosemite. We went to install Sierra earlier, seems to go fine, restarts but then just boots into the user account login window. It did this twice. Does anyone know why?
So my Dad's late 2012 imac is running Yosemite. We went to install Sierra earlier, seems to go fine, restarts but then just boots into the user account login window. It did this twice. Does anyone know why?