Install Msix Powershell All Users Now

Here's a complete example of a PowerShell script that installs an MSIX package for all users:

# Ensure running as Administrator
if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) 
    Write-Error "This script must be run as Administrator" 
    break
try 
    # Define the path to your MSIX package
    $msixPath = "C:\Path\To\YourApp.msix"
# Install the MSIX package for all users
    Add-AppxPackage -AllUsers -Path $msixPath
Write-Host "Installation successful."
 catch 
    Write-Host "An error occurred: $($Error[0].Message)"

Make sure to replace "C:\Path\To\YourApp.msix" with the actual path to your MSIX file.

Before attempting a PowerShell deployment, the environment must meet specific criteria to avoid "Dependency not found" or "Architecture mismatch" errors.

if (-NOT ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) Write-Error "This script must be run as Administrator." exit 1

The core cmdlet for installation is Add-AppxPackage. However, for "All Users" deployment, the approach differs based on the Windows version.

Cause: The MSIX signature certificate is not in the LocalMachine\Root store.

Solution:

$cert = (Get-AuthenticodeSignature -FilePath ".\MyApp.msix").SignerCertificate
$store = [System.Security.Cryptography.X509Certificates.X509Store]::new("Root","LocalMachine")
$store.Open("ReadWrite")
$store.Add($cert)
$store.Close()

Remove-AppxPackage -Package "YourPackageFullName" -AllUsers
# Or for provisioned packages:
Remove-AppxProvisionedPackage -Online -PackageName "YourPackageName"

⚠️ Note: Not all MSIX packages support all-users installation due to developer restrictions. Some may only install per-user regardless of the -AllUsers flag.

To install an MSIX package for all users via PowerShell, you must "provision" it at the operating system level. Unlike Add-AppxPackage, which only installs for the current user, provisioning ensures the app is pre-installed for every existing user and automatically registered for any new users who sign in. Installation Command

Open PowerShell as an Administrator and use the Add-AppxProvisionedPackage cmdlet. You must specify the -Online flag to target the currently running operating system. powershell

Add-AppxProvisionedPackage -Online -PackagePath "C:\Path\To\YourApp.msix" -SkipLicense Use code with caution. Copied to clipboard

-Online: Applies the action to the local running Windows instance.

-PackagePath: The full path to your .msix or .msixbundle file. install msix powershell all users

-SkipLicense: Used to avoid errors if you do not have a separate XML license file (common for most third-party or internal apps). How to Uninstall for All Users

To completely remove a machine-wide MSIX package, you must "deprovision" it so new users don't get it, and then remove it for existing users.

Find the Package Name: Use Get-AppxPackage to find the exact PackageFullName. powershell Get-AppxPackage -AllUsers | Select Name, PackageFullName Use code with caution. Copied to clipboard

Remove for All Users: Use Remove-AppxPackage with the -AllUsers flag. powershell Remove-AppxPackage -Package "PackageFullName" -AllUsers Use code with caution. Copied to clipboard

Deprovision from the OS: Use Remove-AppxProvisionedPackage to ensure it doesn't reinstall for new users. powershell

Remove-AppxProvisionedPackage -Online -PackageName "PackageFullName" Use code with caution. Copied to clipboard Important Considerations

Administrative Rights: All commands for "all users" or "provisioning" require administrative privileges.

Store Apps: Applications distributed directly via the Microsoft Store are typically user-scoped and cannot be provisioned machine-wide through the Store itself; they require sideloading using the methods above.

Dependencies: If the MSIX requires specific framework dependencies (like VCLibs), you may need to install those first or include them in the deployment.

Are you deploying this manually on a single machine or using a management tool like Microsoft Intune?

Installing Python install manager MSIX for all users · Issue #119

Essay: Installing MSIX Packages for All Users via PowerShell  Here's a complete example of a PowerShell script

The transition from traditional MSI installers to the MSIX format represents a fundamental shift in Windows application management, moving toward a containerized, user-centric model. However, a common challenge for IT administrators is that MSIX packages are designed to install per-user by default. This essay explores the methodologies and technical nuances of using PowerShell to achieve "all users" installation—technically referred to as provisioning—to ensure applications are available to every user on a machine.  The Architecture of Multi-User Installation 

Unlike standard installers that write directly to system-wide directories, MSIX packages live in a protected system location (%ProgramFiles%\WindowsApps). When a user "installs" an MSIX, they are essentially registering that package for their own profile. To make an application available to everyone, administrators must use provisioning. Provisioning stages the application assets on the device so that when any user logs in, the package is automatically registered for them.  Primary Methodology: Add-AppxProvisionedPackage 

The definitive tool for all-user deployment is the Add-AppxProvisionedPackage cmdlet, often used in conjunction with DISM (Deployment Image Servicing and Management). To execute this, PowerShell must be run with Administrator privileges. 

A typical command for a live system (using the -Online parameter) follows this syntax:  powershell

Add-AppxProvisionedPackage -Online -PackagePath "C:\Path\To\YourApp.msix" -SkipLicense Use code with caution. Copied to clipboard Preinstalling packaged apps - MSIX - Microsoft Learn

To install an MSIX package for all users on a Windows machine, you must the package using an elevated PowerShell session

. While standard MSIX installs are user-scoped, provisioning stages the application so it is automatically registered for every user who logs in. Primary Command for All Users Add-AppxProvisionedPackage

cmdlet (part of the DISM module) to install for all current and future users. powershell Add-AppxProvisionedPackage -Online -PackagePath "C:\Path\To\YourApp.msix" -SkipLicense Use code with caution. Copied to clipboard : Targets the currently running operating system. -PackagePath : Specifies the local path to the MSIX or MSIXbundle file. -SkipLicense

: Bypasses the need for an XML license file, which is usually required for Store-sourced apps but not for most sideloaded apps. Super User Important Prerequisites Administrator Rights : You must run PowerShell as an Administrator for these commands to work. Trusted Certificate

: The MSIX package must be signed. If it is a sideloaded app, the signing certificate must be installed in the machine's Trusted People store before installation. Dependencies

: If the app requires external frameworks (like VCLibs), you must provide them using the -DependencyPackagePath parameter. AVEVA™ Documentation Verification and Management Check Installation : To see all provisioned (all-user) packages, use: Get-AppxProvisionedPackage -Online Remove for All Users

: To uninstall the package so it no longer appears for new users: Make sure to replace "C:\Path\To\YourApp

Remove-AppxProvisionedPackage -Online -PackageName "YourPackageFullName" Check Current User Status : To see if it successfully registered for the Get-AppxPackage -Name "YourAppName" Advanced Installer

For more advanced deployment scenarios, Microsoft's official documentation on Managing MSIX with PowerShell or guides from Advanced Installer provide detailed parameter lists and troubleshooting tips. PowerShell script

that automatically handles the certificate installation and dependencies along with the app?

MSIX PowerShell Cmdlets - Install MSIX files and MSIXBundles

To install an MSIX package for all users on a Windows machine, you must provision the package at the system level. This ensures the application is automatically registered for every user who logs in. PowerShell Command for All Users

The standard way to perform this is using the Add-AppxProvisionedPackage cmdlet in an elevated (Administrator) PowerShell window: powershell

Add-AppxProvisionedPackage -Online -PackagePath "C:\Path\To\YourApp.msix" -SkipLicense Use code with caution. Copied to clipboard Breakdown of Parameters: -Online: Targets the currently running operating system.

-PackagePath: The full file path to your .msix or .msixbundle file.

-SkipLicense: Prevents errors (like 0xc1570104) if you do not have a separate XML license file, which is common for sideloaded apps. Alternative: DISM (Command Prompt)

You can also use the Deployment Image Servicing and Management (DISM) tool, which achieves the same result:

dism.exe /Online /Add-ProvisionedAppxPackage /PackagePath:"C:\Path\To\YourApp.msix" /SkipLicense Use code with caution. Copied to clipboard

Key Differences: Add-AppxPackage vs Add-AppxProvisionedPackage Add-AppxPackage Add-AppxProvisionedPackage Scope Current User only All Users (Machine-wide) Persistence Only for the account that ran it Auto-registers for all new & existing logins Privileges Standard User (usually) Required Administrator

Note: When you provision a package, it may not appear instantly for a currently logged-in user until they restart their session or the AppX Deployment Service triggers a refresh.

Unlike a typical MSI package, you cannot just add a property (like ALLUSERS=1) and install the application per machine. With MSIX, Advanced Installer