Windows 10 problem

after Downloading my required updates last night my Windows crashed one me. When I restarted the computer the youtube channel was still broadcasting and my pages were still up instead of being closed. The task bar on the bottom was blank and blinking. After closing the programs the page went white. I rebooted the computer but when I signed into windows I got the White page and the blue circle. Went to the TASK windows and The Windows program was gone. I can get on my browsers by manually opening up them on the task page but no Windows. Any suggestions??