BSOD video card 8800gtx error: nvlddmkm.sys

By Keomer
Aug 17, 2010
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  1. So i decided to fire up my brothers computer that he hasnt used for about 2 years and keep running into the bsod with the error about nvlddmkm.sys for my graphics card, the monitor is also blurred as in the colors are distorted and random colors will blurr to the right or the left of where they should be. I can get it to bootup once i go into safe mode and delete the nvlddmkm.sys but when i try and install the latest driver and reboot the same problem and same error pops up. Any advice on how to fix this error? And I was hoping that by installing the newest driver properly that perhaps the blurry screen will clear up, is that just wishfull thinking or could the blurry screen actually be fixed? The computer is running vista 64 with 4g ram and 750w psu. Thanks for the help guys.
  2. EXCellR8

    EXCellR8 The Conservative Posts: 1,835

    as you can imagine nvlddmkm.sys is part of the driver installation so simply deleting it will either cause errors or blue screens. there are a number of things that could be causing this to happen, such as corrupted files, a bad power supply, or even the card itself. the first thing i would advise is to do a clean installation of the display drivers, which requires you to use a piece of software such as Driver Sweeper to completely purge the associated driver files. once this is done, you can restart the computer and proceed to install the drivers normally.

    if this fails, you may be looking at corruption in Vista itself or possibly with the motherboard chipset drivers. there's also a slim chance that you need to update DirectX software or frameworks for graphics-based software. if it comes down to having to test the actual hardware, there are limited options. the best way would be to test the card in another computer (preferably one with a different OS) and to test the power supply and RAM if you can. is there any reason in particular that the computer hasn't been used for a couple of years? there's always a possibility that your brother knew to replace something and never did ;)

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