The Desktop Window Manager Session Manager (UxSms) service provides Desktop Window Manager startup and maintenance services. The service supports the Themes service, and it checks that applications are compatible with the Windows Aero desktop experience. If an application is not compatible with Aero, this service causes it to revert to a classic Windows theme that it supports.
If the computer does not support Aero graphics, performance might be by disabling this service.
This service is installed by default and its startup type is Automatic. When the Desktop Window Manager Session Manager service is started in its default configuration, it logs by on using the Local System account.
This service is not dependent on any other system service, nor is any service dependent on it.