BleepingComputer.com: City of heroes crashed my computer

I just rebooted my computer again since I was getting the blue screen crash of death things and whatever. I updated everything I thought was supposed to be updated, and downloaded City of Heroes since my friend wanted me to play it. I got the blue screen crash of death in about 10 mins. It had some U with a two dots above it and said something and removing new hardware or something. I'm not sure. I would have to get that crash again to know what.