I take it back, its gone back to not launching anything again! I`ve gone back to the previous build of Windows and cancelled the game pass. Its a shame as I wanted to play Metro, I`d rather wait than have to faff with the windows launcher.
Yup it was all running the correct build of windows, it updated itself and took forever doing it. Was all fine last night and this evening it didn't want to launch anything. It is a Beta after all. I got about 5 hours into Metro so I got my £1 of gameplay.