Windows Blue Screen of Death

I keep getting the Blue Screen of Death when I am booted in Bootcamp. Everything appears to boot fine. I can load applications, but then shortly after using the Windows partition the Blue Screen of Death appears. I have a MacBook Pro with retina display. 16GB RAM. The Windows partition has 40GB dedicated to it. Running Windows 7. Everything was working fine last week. I installed some new programs on the Mac Side. I also run Parallels sometimes.