Windows 7 BSOD stop error after playing game.

Have you ran a sfc/scan now to check for errors, or have you checked event viewer what the error is pointing to....

See if you find any RED "X" in the event Viewer pointing to MS

sciggs said:

I got this error after playing Day of Defeat for about 30 minutes. I ran the system file check and memtestx86 for 5 passes and both of those showed no problems. I ran the debugger and figured out it's the nvlddmkm.sys error. Which is apparently my video card. I have a nVidia GeForce 8400 gs video card. I checked their website and I'm running the latest driver. So now I'm stuck. I did all the basic checks so what should I check next. Or should I just wait-and-see since this is the first time its happened?
Any help is appreciated. Here are my specs:

Windows 7 Ultimate 64-bit
AMD Athlon 64 X2 5200+ 2.60 GHz
5 GB RAM
MSI Model KA780G MS-7551 motherboard
NVidia GeForce 8400 GS video card

Thanks

Hello Welcome to SF,

I guess the issue is with your nVidia Display driver nvlddmkm.sys.
Uninstall the old drivers completely and download the latest driver from the webiste NOT from Windows Update.

Run the Memory Diagnostic & HD Diagnostic

Bugcheck Analysis

Code:

PAGE_FAULT_IN_NONPAGED_AREA (50)
Invalid system memory was referenced.  This cannot be protected by try-except,
it must be protected by a Probe.  Typically the address is just plain bad or it
is pointing at freed memory.
Arguments:
Arg1: fffffa801744ec9c, memory referenced.
Arg2: 0000000000000001, value 0 = read operation, 1 = write operation.
Arg3: fffff88004be4dd0, If non-zero, the instruction address which referenced the bad memory
 address.
Arg4: 0000000000000002, (reserved)
FAULTING_IP: 
nvlddmkm+179dd
fffff880`04be4dd0 42090482        or      dword ptr [rdx+r8*4],eax
MM_INTERNAL_CODE:  2
CUSTOMER_CRASH_COUNT:  1
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
BUGCHECK_STR:  0x50
PROCESS_NAME:  hl.exe
CURRENT_IRQL:  0
STACK_COMMAND:  kb
FOLLOWUP_IP: 
nvlddmkm+179dd0
fffff880`04be4dd0 42090482        or      dword ptr [rdx+r8*4],eax
SYMBOL_STACK_INDEX:  3
SYMBOL_NAME:  nvlddmkm+179dd0
FOLLOWUP_NAME:  MachineOwner
MODULE_NAME: nvlddmkm
IMAGE_NAME:  nvlddmkm.sys
DEBUG_FLR_IMAGE_TIMESTAMP:  4b4c080b
FAILURE_BUCKET_ID:  X64_0x50_nvlddmkm+179dd0
BUCKET_ID:  X64_0x50_nvlddmkm+179dd0

Hope this helps,
Captain