Random BSOD, Malware Suspected

Hello, I just had a BSOD. Everything was working fine for a few hours, then *blam*. I suspect malicious software for some reason, so can anybody help me try to find the reason? Just did an SFC scan, it's clean. Thanks! P.S. Look at my recent post HERE (http://www.sevenforums.com/system-security/281687-suspected-malware.html)