On my 2nd install (done 2 days ago), and it just happened to me again. Metro apps will run fine-- in fact I was able to build some of my own basic apps with visual studio. and they loaded fine.
Starting today they just stopped loading. I click "Stocks" and all I get is the splash screen. After awhile it'll go to a pure green screen. any keypress then brings me to the start screen.
I haven't modified my system in any way today short of installing chrome. I uninstalled but still got nothing. I also see a windows update came through today at 12pm. Perhaps this caused it?
Here is my debug output for one of my programs. Is anyone else experiencing this?
'WWAHost.exe' (Script): Loaded 'Script Code (Windows Internet Explorer)'.
The program '[3224] WWAHost.exe' has exited with code -1073741819 (0xc0000005).