Windows – nVidia (nvlddmkm.sys) BSoD on start up

bootbsodnvidia-graphics-cardwindows 7

I have an NVidia 8500 GT. I've been experiencing this error ever since I unplugged the S-video cable. I have tried reformatting and reinstalling Windows, but I still get this error.

At first, when I had Windows 7 still installed on my PC, I could run in Safe Mode and try deleting the nvlddmkm.sys from system32/drivers directory, then expand the nvlddmkm.sy_.

I have tried reformatting once again and Windows setup didn't complete successfully, because this error showed up again.

Best Answer

It sounds like this is a common problem... I guess you already saw this page? http://forums.techarena.in/vista-hardware-devices/689444.htm

It advises the fix you already used... I think the problem is, you are using the microsoft driver for your card, but it really should use the nvidia driver. The steps listed in that link are:

  1. I uninstalled all my nvidia drivers and deleted the nvidia directory.
  2. I started in safe mode because the problem was getting so bad that I couldn't even open explorer before the driver failed.
  3. I found nvlddmkm.sys and renamed it to nvlddmkm.sys.old as he mentioned.
  4. I installed the latest driver, which at the time of me writing this was 195.62 WHQL
  5. I restarted and it works great.

So first download the newest nvidia driver, save it somewhere, try to get into safe mode and install it.

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