CUDA 9.2 DeviceQuery runs always find 0 devices - Windows 10, x64 MS Vis Studio Community 2015

I have installed CUDA 9.2 and MS Visual Studio, but on running the tests I always get 0 found. Windows Apps installed finds NVIDIA graphics driver 397.44, and under Device Manager finds can find the GeForce driver 24.21.13.9744. Why does running the test sample not find anything?