The selected server might perform roles that require installed services that are not found in the Security Configuration Database and thus do not appear on any of the previous pages. If this is the case, the Security Configuration Wizard presents you with a list of installed services on the Select Additional Services page. Unlike the previous pages, there is only one view for this page. (This is because the "installed additional services" and "all additional services" views would show the same list.)
Click the triangle between the check box and the service name for more information about the service. Just as in previous pages, you can examine each additional service and decide if it needs to run for the selected server (or for other servers to which you intend to apply the policy) to perform as desired. If the service is not required, confirm that the check box is cleared. If the service is required, select the check box, and click Next.