In the beginning I checked don't show this in the future in the "which device did you plug in" window. Now I need to record something and actually need that option. I can't find it. 

I supposedly could enable it in Realtek HD Audio Manager, but for some reason I can't find the Realtek HD Audio Manager either. Found that here: https://answers.microsoft.com/en-us/windows/forum/windows_8-hardware/how-to-get-a-popup-when-device-is-plugged-in-audio/c1193a6b-9501-42be-9550-141bbf2d718c

I do have Realtek HD Audio driver installed, only the Manager I can't find.

Dell XPS, 16GB RAM, Win 10