The same problem here. I've got 4 gb of ram, so far 8 (64bit) has been working flawlessly (much faster than XP). Drivers updated. I would like to single out the problem. Is it:
a) bios/chipset ( I've got nvidia 780i sli chipset)
b) ssd drive I've installed OS on
c) sb audigy card ( old known problem of not having drivers for the midi port)
d) other :)
I don't have time to pull everything out one by one and check, trying to install 8.1. Not saying that pulling out the motherboard could present a little of hassle :)
Thanks in advance
P.S. as almost everyone else I don't any ramdisk software, weird partitioning, second OS, no encryption etc. etc.
edit: maybe its the q6600 processor? (64bit) :)
For what it's worth, I also run a Q6600, 4GB RAM, 64-bit OS, and an nVidia video card, although mine's much older than yours (GTX 280 running v. 327.23)
I also run a Q6600, Nforce 650iUltra chipset(EVGA), 6GB Ram, Windows8 Pro with Media Centre 64bit and Geforce GTX650Ti. Tried numerous times to install the 8.1 update following lots of suggestions on these forums. But alas to no avail, I still get the Blue screen error on restart and have to return to Windows 8.