I've had Windows 7 since the release date, but for some reason it has stopped working. I can start up my PC, but at the login screen it crashes (sometime bluescreen, sometimes not). I tried safe mode, debug mode, CD-boot, system repair, but it just crashes when I get past the part where Windows does some basic starting.
The problem started today, I went downstairs to get some breakfast, and when I came back my PC was restarting. Then I tried starting it again, but it crashed on the login screen (blue screen). At that point I was able to get into safe mode, but for some reason I'm not able to do that either anymore.
System specs in my profile, running Windows 7.
Does anyone have a clue what could fix my problem?