Since I received my new work PC (the impressive Dell XPS 13) the Windows Store app has crashed every time I tried to start it. This has prevented me from really using any Metro apps ... which until the release of 8.1 via the store hadn't been an issue.

When I originally searched for help on this, nothing stood out and I presumed that the IT team had blocked it. However, after confirming that they'd not done anything to deliberately block it I'd never gotten around to reinvestigating as I was fully in Ubuntu land.

I'm back in Windows now though, and after being prompted to upgrade to 8.1 I decided to do another search ... and I found a solution almost immediately. Running the following solved the problem for me, but if you're still having trouble the check out the source link where I originally found the solution.

powershell -ExecutionPolicy Unrestricted Add-AppxPackage -DisableDevelopmentMode -Register $Env:SystemRoot\WinStore\AppxManifest.xml

[source]