Ensure that the Themes service is installed. The Themes service is available by default on Windows Vista and Windows 7. Themes ...

Ensure that the Themes service is installed.
 
The Themes service is available by default on Windows Vista and Windows 7. Themes can also be enabled on Windows Server 2008 or higher, but the service is not installed by default. To install Themes on Windows Server 2008, use the Server Manager to install the Desktop Experience feature.