Flirc Skip 1s - Unable to install software (MSIX)

 Issues on my W11 23H2 machine with broken msix package feature.

Credit to this post:

https://answers.microsoft.com/en-us/windows/forum/all/solved-when-i-try-to-open-any-appx-or-appinstaller/cf339756-1dfb-453f-bbf8-52fbbecffdc5


Open a PowerShell Terminal (Admin) and enter:

taskkill /im AppInstaller.exe /f

This is just in case the process is hung up, so an error like "ERROR: The process "AppInstaller.exe" not found." is okay.

Next, this command in the same PowerShell Terminal:

Start-Process "shell:Local AppData\Packages\Microsoft.DesktopAppInstaller_8wekyb3d8bbwe"  

A window will open. To be extra safe, copy the contents of this folder to an empty directory elsewhere, such as C:\Backup\

and then delete all the files and folders inside of the Microsoft.DesktopAppInstaller_8wekyb3d8bbwe folder.

Finally we will reinstall the App Installer app with this command:

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

Now try to run/install your file again!

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