Deploy an MSIX package with MSIX Core

MSIX Core brings MSIX deployment to select previous versions of Windows. To get started, first make sure that MSIX Core is installed on target device.

MSI installation

We recommend using our provided MSI installers to install MSIX Core because they automatically add msixmgr.exe to your search path and associate the MSIX extension with the installer.

You can download the following architecture-specific MSI installers from the Assets section on our release page:

  • msixmgrSetup-x64.msi
  • msixmgrSetup-86.msi


 Make sure you choose the correct installer for your device's architecture. This will impact where the installer will store important files. The name of the file may change based on the version of the installer.

Installing your certificate

MSIX packages are required to be signed. Before installing any MSIX packages, make sure you have installed the certificate you used to sign your packages. You can do this using you normal workflows for installing certificate from your management tool.

If you want to manually install a certificate you can run this command from an elevated command prompt:

certutil -addstore root <insert certificate.cert>


 You should add your trusted certificate under Trusted Root Certification Authority in all scenarios.

Using the Command Line

Once the tool msixmgr.exe is installed, it can be used to manage your MSIX packages on this machine by searching, installing, and removing. The command line utility msixmgr.exe is intended for system administrators. It is most useful when run from administrator prompt. Not all commands when run from a regular command prompt will display to the console. See below for more details.


Using command prompt or PowerShell, navigate to the directory that contains msixmgr.exe and run the following command to install your MSIX package. The -quietUX parameter can also be added at the end of the command so that users don't see the installer UI.

msixmgr.exe -AddPackage C:\NotePadPlus\notepadplus.msix -quietUX


 This and the following examples use notepadplus.msix. This is one of our sample packages.

Querying for a specific MSIX Package

Searching for a specific package is possible by packageFullName, packageFamilyName and/or using wildcards as well. Supported wildcards are *(match any character) and ?(match single character).

msixmgr.exe -FindPackage notepadplus_0.0.0.1_???__8wekyb3d8bbwe
msixmgr.exe -FindPackage *padplus_0.0.*
msixmgr.exe -FindPackage *epadplus_8wekyb3d8bbw?


To uninstall use the following command:

msixmgr.exe -RemovePackage notepadplus_0.0.0.1_x64__8wekyb3d8bbwe -quietUX