Windows 8 apps won’t launch
You click a Windows 8 app, and nothing else happens? Display issues are often the cause. In particular, Windows 8 apps don’t currently support screen resolutions lower than 1024 x 768 (or 1366 x 768 when snapping), so increase your resolution if possible (launch the desktop, right-click, select Screen Resolution).
Or if that’s no help, try updating your video drivers.