Well I have been waiting for half life Alyx to download and when it finished I put on the head set only to find I am in the floor only my head sticking out, I have reset the hole thing many times and rebooted my pc but nothing has fixed it. Does any one know how to fix my problem please.
You should re-run the Steam VR Room setup. It is now a stand alone app. Start SteamVR (important) then search in your app list for "Room" and it you can find it. Run it and it will have you set your headset on a surface at one point and measure how far it is to the floor. I just put it on the floor. This should solve your problem. I have had to re-run it several times to get guardian and walls just right, but this is the only way to really solve it.