Windows 7: BSOD during shutdown: PAGE FAULT ON NON PAGED AREA.

System Specs:
2007 Acer Aspire E380
AMD 4400 dual core processor
2gb RAM
Western Digital 350gb HD
Nividia GE Force 8840 graphics card
OS: Windows 7 home premium 32bit

During shutdown right as computer would turn off, BSOD appears with PAGE FAULT ON NON PAGED AREA. 0x00000050 (0xffffffe8, 0x00000001, 0x82c8d8e9, 0x00000000) It always happens at the same exact time and always displays the same error messages. I have installed new hardware: Monitor, graphics card, and dvd rom but all have updated drivers and all are working properly. Problem seems to coincide with installation of a dvd blu ray rom but i disabled it and problem still occurred after that. Please help if you can. Thank You.

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Hello guys!

I would like to ask for some help, my problem is the same as it is stated in the title.
I followed the advise and made a dump of the crash, I attach it now.
But there is something different in my case: not every shutdown goes into BSOD, it has an average rate of 1:3 (BSOD/Shutdown)

I haven't installed any updates (AFAIK) nor new hardware.

Please help me, if you can. (And if there is a forum where I can learn how to analyze these dumps, please send me the link to it. I would like to learn to search the solution for my problem)

SF_02-03-2013.zip