I have this same problem, I thought it was from updating BIOS on my mother board so I went back to an old version but it's still freezing. I think it's the new version of NZXT cam causing it in that case. Cause this didn't happen with the old "ugly" one. Where can you get NZXT cam 3.XXX???something? I think it's the pretty new 4.0 one causing it in that case.