Do you have Mixed Reality because if you type in (on a Windows 10 PC) 'Mixed Reality' on the start panel (bottom left) and either a. open the app or b. download it then press next (when you open the app) and then plug in your headset (again if you already have your headset plugged in) and put on your headset and it should run (with mine it had A LOT of lag even though i have a gaming pc but ohwell) Sorry if this didn't help.