Disabling iGPU when booting into Windows

When booting my OpenCore Catalina hackintosh I disable my dedicated GPU (1070) using -wegnoegpu so that it only outputs over the integrated GPU.

I have two cables plugged in to my monitors, one from the iGPU and one from my nvidia GPU. This works great when booting into Mac OS, but when booting into windows it picks up the same monitor twice, once from the dedicated GPU and once from the integrated GPU.

I tried to uninstall the drivers for the integrated GPU or disable the device, but the monitor is still detected as a basic display adapter.

Is there any way to tell Windows to ignore the iGPU, even though there are monitors plugged into it?

I know this isn't directly related to hackintosh, but I figured that some of y'all'd have run into the same problem.