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Windows 7: News BSOD after being quiet for 2 months

24 Jul 2011   #1

W764 & W764
News BSOD after being quiet for 2 months

Upon boot got the dreaded BSOD, the files are attached.

The PC is currently goping past the validation period, I have the key but not using it yet, as I am still testing some thing, and that might be why I got the BSOD because the AV is not enabled (using MS AV).

although the PC has been like this running for about 2 months, so not sure if that is the issue.

I will await your respones,



My System SpecsSystem Spec
24 Jul 2011   #2

Windows 8.1 Pro x64

The cause is you nvlddmkm.sys driver used by your Nvidia video card
Uninstall the driver
Use Driver Sweeper to remove leftover Nvidia display driver files
Reinstall the current version Drivers - Download NVIDIA Drivers

If still getting crashes test your RAM
RAM - Test with Memtest86+
Is anything overclocked?
BugCheck 50, {fffff5001c5877d8, 1, fffff8801422ce01, 7}

Unable to load image \SystemRoot\system32\DRIVERS\nvlddmkm.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys

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.
Arg1: fffff5001c5877d8, memory referenced.
Arg2: 0000000000000001, value 0 = read operation, 1 = write operation.
Arg3: fffff8801422ce01, If non-zero, the instruction address which referenced the bad memory
Arg4: 0000000000000007, (reserved)
My System SpecsSystem Spec
24 Jul 2011   #3

W764 & W764

hmm ok will do, no nothing overclocked, totally stock. RAM is new, well less than 3mo old. (16gb), will try the Nvidia first
My System SpecsSystem Spec

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