Open up a Terminal Services client and access the server. Then go to Server Manager and under the Web Server role, make sure that the following Role Features have been installed:
Make sure that the following IIS features are installed:
Common HTTP Features
Static Content
Default Document
HTTP Errors
HTTP Redirection
Application Development
ASP.NET
.NET Extensibility
ISAPI Extensions
ISAPI Filters
Management Tools
IIS Management Console
IIS Management Service