I have several PCs at home, and two of them have either BSOD or just freeze (the Windows 8 machines works it's way out of BSOD and restarts, the Windows 7 machine just freezes completely). My other two PCs run just fine.
THe only difference: the two that are BSODing are running Avast 2015...they've updated. I won't update the others until I know this is resolved.
This is on Windows 8 and 7 64 bit both, both completely up to date.
Avast version 2015, 2015.10.0.2208 on both.