A while ago, I posted a thread about how my dad's computer wouldn't finish shutting down. It gets to the "Windows is now shutting down" screen and then just sits there. I was told to go to the Window start-up and shut down troubleshooter to fix the problem. I tried that but the troubleshooter is not working. I get to the first screen and tell it that my computer stops responding when I try to shut it down. I click next and it goes to a blank screen. What do I do from there?