I’m not sure, but Windows might have some GUIs for it. Since I’m using Ubuntu, I’m, used to these beautiful black terminals 

Might be some kind of permission issue. Could you try to run the process as an admin and see, if that helps?
G = graphics, C = compute. Since you are using CUDA, only C should be shown. As far as I know G will pop up, if e.g. DirectX is used (but I have really limited knowledge about this area).