Permissions changed of %Program Files%\Windows Apps, apps don't work anymore

Add "All Application Packages" with full control to permission list.

How to fix Windows 10 apps that won't launch or hang at loading screen

1. Open PowerShell in administrator mode.
2. Paste the following code (right mouse click) and hit enter:
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}