Hi, My laptop is Lenovo Yoga 710. Today after two or three weeks I turned on the laptop and after I entered my password I saw a screen which said “We have got update for you and it may take a few minutes, don’t turn off your Pc”. I waited for about three hours and nothing happened and my laptop was stuck. I pressed “Alt-Cntrl-Del” and after that I pressed “Cancel” and it seemed the update has started to work but it kept on freezing and I continued to press “Alt-Cntrl-Del” and thereafter “Cancel”. Anyway I somehow reached the desktop but it was all black but I could see the start button, clock, and a few other things but they were blinking and I could not do anything. Kindly inform me how I can restore my laptop back to working condition. Best regards.