I'm still having the same issue discussed at length in the below thread to this date and can't find a solution that works for me: https://discussions.apple.com/thread/6767136 Microphone / Headphones combo port does not work in BootCamp
I have an old 2012 Macbook pro running Windows 10 and trying to utilize a gaming headset that has combined headphone/microphone. The headset has a mic cord and a headphone cord, so utilizing a mic/headphone to TRSS adapter as seen here: https://cdn3.volusion.com/zcgcs.pctzl/v/vspfiles/photos/29-8327-2.jpg?v-cache=1593342269
The headphones work totally fine, but can't get the microphone to be recognized in Windows 10 and can't find a driver to fix the issue. Separately, I've confirmed the headset/adapter works totally fine from a hardware perspective and is recognized on the MacOS side of the computer.
This is what my audio devices look like in device manager:
Any help would be greatly appreciated