I have frequently been getting BSOD that crashes the computer, and it has to reboot. it usually happens in games, or when I try to alt-f4 out of games. The vague details are here:
Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7023
Time: 11:50:25 PM
The Microsoft Windows service terminated with the following error:
The specified module could not be found.
Capture the error code, or upload the mini dump the next time it happens.. Can't really say much based on the info given thus far (not that i'm blaming you or anything... it's just too hard to actually say what's wrong or how to fix it at this point).
Next time you boot into Windows, hit F8 and select "Disable automatic restart on system failure". This will leave the error code on screen so you can write it down until you reboot the system yourself.