It seems most of my Windows 10 apps exit immediately when trying to run them

[sj3vans]

I noticed Sunday, 8/19, that none of my Windows 10 store apps will run.  When I try to run Calculator, Alarms, Store, they simply exit.   I've tried to right click on apps in the menu, select info, and then reset, but nothing changes.  I don't want to try uninstalling as I can't get to the store to reinstall.

One exception seems to be Mail, which runs.  But I noticed last week that I could not click on any links in an messages as it would just yield a nondescript error "Unable to open ..."  

I've rebooted and will soon start looking at restore points although I haven't made any recent changes I'm aware of.  But before I delve into that, I wanted to see if there are nay other suggestions?

[#2]

Hello @sj3vans, 

Try to re-register apps. Perform these steps:

1. Search for Windows PowerShell using Cortana or Windows Search.

2. From results, right click on Windows PowerShell and select Run as administrator.

3. Then type following command and press Enter key:

Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

Let the command complete.

4. Close Windows PowerShell and see if the issue is resolved now.

Let us know if this helps!