When trying to install Windows 7, I get a BSOD with igdkmd64.sys as the culprit.

So recently I attempted the jump from 32-bit to 64-bit in the form of Windows Vista 32 to Windows 7 64. My processor has 64-bit architecture (It's a Q9400), so I assumed if I did a clean install of windows 7 and formatted Windows Vista off of my hard drive completely, that I would not have an issue. When (I think) i'm almost done with the installation, and when windows is "starting up", the BSOD comes up with the error:



Technical information:

*** STOP: 0x00000050 (0xFFFFF88103878FE6, 0x0000000000000000, 0xFFFFF880049A51DB, 0xFFFFF880049A50000000000005)"

[Could have misplaced a zero..]

Anyways, if anyone could me know what my problem might be.

Intel DG43NB desktop motherboard
4GB DDR2 @ 800mhz
Intel Core 2 Quad Q9400 processor

If any further information is needed let me know but I do not have the exact model names for the hard drives that I am using.

PS: ANY information will probably be helpful please I cannot find anything about this error really. Thank you for your time!


Essential Member
Do you have more than one hard drive?

Are you sure you choose the second box that said advanced when you installed?

Problem fixed

I had to remove my video card and after that my download went smooth and rapidly! Got it installed in under half an hour rather than over 7 hours! Thanks all for the help! The reason I removed the video card was because the igdkmd64.sys I was talking about is related to my onboard video graphics accelerator and so I decided to remove all my non-essential hardware and then it worked!


Excellent Member
Microsoft Community Contributor
Someone was saying a bios update might help.

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