This policy setting controls the ability to prevent embedded UI. If you enable this policy setting, no packages on the system can run embedded UI. If you disable or do not configure this policy setting, embedded UI is allowed to run. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\Windows Installer!Prevent embedded UI (2) REG: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer!MsiDisableEmbeddedUI