When trying to install SQL, Windows Update KB2919355 is a prerequisite, and on a new server this is not always installed and the SQL install stops until it is rectified.
Occasionally when you try and install the update you get the error KB2919355 is not applicable, yet the update is not installed. After searching the internet high and low a solution was found.
If you install Windows Update KB2975061 first and restart the machine and then install KB2919355 and restart the machine again, the SQL install prerequisites will be successful and you can continue with your install.
Hope this solution helps you and you get less grey hair and frustration trying to figure it out.