Re-register Microsoft Store app in Windows 10  

Brink said:

Hello Andrew, :)

You might see if using the method in the tutorial below instead to completely reset the affected apps may help.

https://www.tenforums.com/tutorials/4...dows-10-a.html

Many thanks Brink. That fixed it

In the Note it's not written if this will delete/break installed apps from the Store... ?

Brink said:

I don't see anything wrong with the command in your screenshot. It may be that a break in the command line is being entered when copied into the command prompt. See if copying and pasting the command from below may work without the code box.
PowerShell -ExecutionPolicy Unrestricted -Command “& {$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + ‘\AppxManifest.xml’ ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}”

When I try running this I get this:

C:\WINDOWS\system32>PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + ‘\AppxManifest.xml’ ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}"Add-AppxPackage : Deployment failed with HRESULT: 0x80073CF6, Package could not be registered.error 0x80070005: While processing the request, the system failed to register the windows.integrityExtension extensiondue to the following error: Access is denied..NOTE: For additional information, look for [ActivityId] ff6825c2-6872-0001-03d5-68ff7268d201 in the Event Log or usethe command line Get-AppxLog -ActivityID ff6825c2-6872-0001-03d5-68ff7268d201At line:1 char:97+ ... fest.xml’ ; Add-AppxPackage -DisableDevelopmentMode -Register $manife ...+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : WriteError: (C:\Program File...ppxManifest.xml:String) [Add-AppxPackage], IOException + FullyQualifiedErrorId : DeploymentError,Microsoft.Windows.Appx.PackageManager.Commands.AddAppxPackageCommand

Brink said:

Hello Ron, :)If you like you could use the method in the tutorial below to reset the Store app to accomplish the same thing.
App - Reset in Windows 10

I had already tried that suggestion.

I finally got it fixed using Tweaking.com's Windows Repair, focusing on Store issues.