Run Import-Module DISM before the command, or use the full path:
dism /Online /Add-ProvisionedAppxPackage /PackagePath:"C:\App.msix" /SkipLicense Cause: You previously installed the same package for the current user via double-click. install msix powershell all users
Import-Certificate -FilePath "C:\SigningCert.cer" -CertStoreLocation Cert:\LocalMachine\Root Cause: The DISM module is not loaded. Run Import-Module DISM before the command, or use