Install Msix Powershell !free! -

$CertPath = "C:\Certs\MyCompany.cer" $Cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2($CertPath) $Store = New-Object System.Security.Cryptography.X509Certificates.X509Store( "Root", "LocalMachine" ) $Store.Open("ReadWrite") $Store.Add($Cert) $Store.Close() Add-AppxPackage -Path "C:\Downloads\MyApp.msix" -AllUsers Security Warning: Only trust certificates from legitimate sources. Installing from a URL (Download + Install) You can download and install an MSIX in a single script without saving the file permanently:

Get-AppxPackage -Name "MyCompany.MyApp" | Remove-AppxPackage For machine-wide installations (requires admin): install msix powershell

Get-AppxPackage -Name "*MyApp*" To see detailed information (version, install location, publisher): $CertPath = "C:\Certs\MyCompany