# Enable sideloading (requires admin) Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\AppModelUnlock" -Name "AllowAllTrustedApps" -Value 1 -Type DWord Or use the GUI: . Uninstalling an MSIX Bundle Find the full package name first:
$Dependencies = @( "C:\deps\Microsoft.VCLibs.x64.14.00.appx", "C:\deps\Microsoft.UI.Xaml.2.7.appx" ) foreach ($dep in $Dependencies) Add-AppxPackage -Path $dep powershell install msixbundle
Add-AppxPackage -Path "MyApp.msixbundle" -ForceApplicationShutdown -ErrorAction SilentlyContinue Add-AppxPackage -Path "\\server\share\installer.msixbundle" -ForceUpdateFromAnyVersion 3. Install with Dependency Handling If your bundle relies on framework packages (e.g., VCLibs, UI.Xaml), install dependencies first: | Error | Likely Cause | Solution |
catch Write-Host "Error: $($_.Exception.Message)" -ForegroundColor Red exit 1 enable sideloading via PowerShell:
try Write-Host "Installing $BundlePath ..." -ForegroundColor Cyan Add-AppxPackage @params Write-Host "Installation succeeded." -ForegroundColor Green
Add-AppxProvisionedPackage -Online -FolderPath "C:\StagedApp" -SkipLicense Note: This is a DISM cmdlet, not Appx. | Error | Likely Cause | Solution | |-------|--------------|----------| | 0x80073CF3 | Bundle contains wrong architecture | Match OS architecture (x64/x86/ARM) | | 0x80073CF0 | Missing dependency | Install required framework packages first | | 0x80073D05 | Bundle not signed trustingly | Enable sideloading or install certificate | | 0x80073D2A | App already installed for another user | Use Remove-AppxPackage for that user first | Enabling Sideloading (if needed) For unsigned or self-signed bundles, enable sideloading via PowerShell: