I had a few problems with PC an hour ago, Kaspersky with open scanning would just stand open, also experienced many bugs then. I couldn't shut it down through Start Menu, then I try to forcibly shut it down, and the screen goes black and freezes, but it isn't shut down, as I hear the noise. I couldn't do anything, I tried forcibly shutting it down twice more, nothing. I move and spam on the mouse, nothing. What do I do?