Crashes when I try to play a map/campaign

[[Alewood] Seóirse]

I have a massive problem with the game: When I play a map, a campaign, or join a server, etc; it crashes, and I get a blue screen and my computer restarts. This is started happening recently , I've been able to play fine before. I beleive it to be one of the custome campaigns I downloaded, but I'm not sure. I've re-installed multiple times to no avail. Any help on how to stop this or run a clean installation?

[[RIOT] BAD_CO.]

Hello [StSv] Darkfall998. You need to get the error report thats generated at the BSOD. It will tell you what driver (which is what i would bet on if i gambled) is causing the system crash. Get ahold of me and i can perhaps help you with the problem.

[[Alewood] Seóirse]

Thank you :D

[[Alewood] Seóirse]

But where would i find the BSOD? Im not a very computer-smart person :/