Have spent the last few hours updating to OSX Yosmite on my 2011 Mac and all I have now is a white screen! Have shut down the computer but it has made no difference. Help!i
Have spent the last few hours updating to OSX Yosmite on my 2011 Mac and all I have now is a white screen! Have shut down the computer but it has made no difference. Help!i
iMac