Tensorflow just released windows support. I installed the gpu version and CUDA 8.0 and python 3.5. However, after I import the tensorflow I got the following error:
It took me a lot as for Dan Bricklin.
I finally achieved it taking the same stpes but in order.
Removed the previous tensorflow from my conda environment.
Installed CUDA v9.1 for Windows 8 (standar installation with the default version of VisualStudio) and added "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1" to the path.
Downloaded and extracted cudnn-9.1-windows-7-x64 , moved it into "Program files" and added it to the path "C:\Program Files\cuda\bin".