SQL2008 Install

Assumes DVD or ISO image of installation media is mounted and pre-requisites from MSSQL Install page have been addressed.

GUI Install

Run the Setup executable (as Administrator) from the installation media.

This error came up during a test installation on Windows Server 2012 and 2012R2. I believe, in this case, the warning can be ignored.
Server Manager - Dashbaord - Tools - Services
SQL Server Configuration ManagerEnable TCP/IP if you need remote access to this SQL Server (likely).

TODO: