Hello,
I used to have a BSOD, DRIVER_POWER_STATE_FAILURE, which got fixed by updating my Nvidia driver. Now I keep having PAGE_FAULT_IN_NONPAGED_AREA (nvlddmkm.sys). I don't know if it's the driver's problem, but it is really irritating. My computer crashes about 2-5 times a day randomly. While watching videos, while playing games, while surfing the web and just while being AFK. I have researched the problem much and I haven't found a solution to it.
Nvidia GeForce GT 640M 2GB of VRAM
Windows 8 64 bit
Acer Aspire V3-571G
If the problem doesn't get solved I'll get it fixed, It's still under warranty. Although It's like 100 kms by bus... 