Recently my laptop had this issue and I just let it cool off for a few hours so it booted up nicely, but this time its different. I turn it on, type in my account password. Then comes the loading screen before the actual desktop and when that finishes, all I can see is my background photo, my taskbar without any apps on it except for -date and time , search option, start button, and I think notifications.(also there is no any windows on the actual background. I tried disabling some apps but It hasnt worked. It seems to be constantly refreshing and I cant get anything to work but my task manager.