The Windows Modules Installer (TrustedInstaller) service enables installation, modification, and removal of Windows updates and optional components. If this service is disabled, installation or removal of Windows updates may fail for this computer.

This service is installed by default, and its startup type is Manual.

When the Windows Modules Installer service is started in its default configuration, it logs on by using the Local System account.

This service is not dependent on any other system service, nor is any service dependent on it.