Microsoft SQL Server 2012 Setup Error When Enabling NetFx3 With Error Code: -2146498298

Installing SQL Server 2012 on Windows Server2012 for SharePoint2013.

"The following error has occurred:

Error while enabling Windows feature: NetFx3, Error Code: -2146498298, Please try enabling Windows feature: NetFx3 from Windows management tools and then run setup again. For more information on how to enable Windows features, see http://go.microsoft.com/fwlink/?linkid=227143"

To fix manually install/enable dotNet3.5 feature.

 

Now retry the SQL setup.