@Thinder I'm running SteamVR beta too and i'm pretty sure it is supposed to start up automatically after Pico's Steaming Assistant connected the HMD via Wifi or USB. There must be something messed up with your Windows installation if it doesn't work this way. If i remember correctly, during installation, Streaming Assistant checks for SteamVR and if everything is in order?
What really troubles me, is the screenshot you shared about Virtual Desktop (??). Why does it look so different than mine?
@QcumberThanks, that works as intended. I was actually thinking Thinder found a special trick or tweak, but it doesn't make any sense.