how to solve windows metro ‘This app can’t open’ problem

After repairing my disk on startup and many restarts, windows 8 metro app start behaving like alien apps 

no one was accessible and when i clicked on any app it says cant open , needs to repair , problem is quite minor here is quick steps to fix them 
  • click on broken app
  • click on “Fix this app in app store”
  • click on install 
  • wait few minutes ( 5 -6 maximum)
  • and click on start 
  • you will see problem is solved 
Problem 

when you try to open you will get this screen 

need repair 

click on install 

Solved 

but the little back pain is you have to do this for every app which is not working

Done ! enjoy windows metro app