I bought the enhanced addition and it keeps trying to read from Drive E (which may be fine). Each time it tries to install it crashes and says not enough room even though I have 922 GB available and the machine is brand new. Running 8.1 64 bit as well.
Thanks,
Jesse

Is the 922GB free space you mention on your OS drive/ partition or is another drive?

Thanks for the message. Yeah it is all one drive. Is there a place I can download the game since I already have the install code so I can just do it that way?

Yup insert your key into your GOG account if you have not done so already.Then Press on Account > Library on the top right. Click on Witcher 3: Wild Hunt and you will see a list of an 7 part download. You can either download the patches from there too or download Gog galaxy after installing it and it will download the patches itself. Keep in mind Gog galaxy is still beta and your download may be slow for the patches there.