If you open up Windows 2012 Server Manager, go to Roles and Features. Then click on the IIS Web Server Role and make sure:
a) You have the IIS Web Server Role installed with the following features enabled:
![](/Support/Attachment/1718.aspx)
b) You have the IIS Web Server - Application Development features enabled:
![](/Support/Attachment/1719.aspx)
c) You have the following .NET 4.5 Features installed:
![](/Support/Attachment/1720.aspx)