Installing driver in Windows VM with multiple GPUs

[bobbintb]

I have 3 Nvidia GPUs installed in one VM. I use Aster to have multiple workstations with the same Windows installation. I don't think that's relevant but mentioning it just in case. I did some reconfiguring with my server and now two of the video cards are showing as other devices in device manager. This isn't a problem per se, as this is the normal state when first setting things up. The issue is that installing the driver so that it works for all the GPUs involves a big song and dance. Additionally, I dare not update the driver and have to go through it all again. Running the Nvidia driver installer fails. I usually have to remove all the drivers, unassign the video cards, assign a VNC as GPU, and reinstall the drivers and it's a long and frustrating process. I don't know if anyone else has had similar issues. Does anyone know of an easier way? My GPUs are GTX 1060, GTX 1050 Ti, and GTX 950.