I had the same problem after upgrading to Win 10 x64. Go to your NVIDIA control panel and set it to use the GeForce for KW.
Automatic choice will try to use the integrated graphics which will result in the error you mentioned.
And thus my suspicion was right.
I know I am a few months late to the party here, but I have a laptop with an Intel graphics card. No GeForce. I have no idea how to do what you are talking about but I do think this will fix it.