When you click on the Store icon in Windows 8 the screen goes green as if Store is opening but then crashes. Here’s the fix that worked for me:
Press WindowsKey + X
Select Run
Insert the following:
powershell -ExecutionPolicy Unrestricted Add-AppxPackage -DisableDevelopmentMode -Register $Env:SystemRoot\WinStore\AppxManifest.XML
Click Enter and it should now work 🙂