I've downloaded Minecraft Windows 10 today and I could not get it to open earlier. I tried turning off account sync settings, reinstalling & updating my graphics driver, restating my PC.

Out of the blue the game started working and it ran for a few hours with no issues. I closed the game down and now it won't open again. I just get thr white screen with the Mojang logo for about 5 seconds and then it closes.

I'm not too sure on how to fix this myself since it seems to be intermittent.