OpenXR Runtime for SteamVR - Reverb G2

PS. I had a look at your other post about it not working. Have you tried removing Windows Mixed Reality completely and reinstalling (reinstall is auto when you re-plug your G2)?
It’s a bit of a tricky one: I had to do it when a Windows Update wouldn’t work. I posted here about it (but I think someone else on that thread explained how to actually do it - sorry can’t find that post):