Windows apps are not opening

Hey, please anyone help me. Recently when I was working on my PC, there was a power cut and my PC shutted down unexpectedly. I have again booted the PC and saw that no windows applications which are on the start menu including the PC settings, windows store are not opening. When I click on them they are just flashing on the screen and remaining on the. Why is this happening? What shall I do to bring my PC to a normal state?
 
Sounds like windows is corrupted from the unexpected shutdown. Try a system restore from a early time. See if this fixes your problem. If not you have to do a factory reinstall .
 
Can you do a sfc /scannow ?
Might be all it needs, and will not do any more harm, it's a built in Windows routine to repair the system files.
 
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