A week ago I shut down my computer for the night and when I went to try to start it up in the morning I got the bloue screen of death. It just keeps on trying to start up, I get the blue screen, and then it restarts itself. I tired doing the tutorial on this site but my computer keeps on freezing at the first step. I can not select install, repair or quit. The only way I can stop it is to press the power button on the front of my tower. What does that mean? And how can I fix my computer? Thanks in advance!