While installing SQL Server 2012 on Windows Server 2012, I got this error "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".
The installation continued and at the end the features that failed were Database Engine Services & Management Tools (I had SSIS & other Client Tools selected). The error says to enable .NET 3.5 manually. But when I tried to add the .NET 3.5 feature, I found the .NET 4.5 is already installed. Now I am unsure if I should install .NET 3.5 in addition to .NET 4.5 or uninstall .Net 4.5 and install just the .NET 3.5.
I have reviewed http://support.microsoft.com/kb/2681562 but it does not clearly say it either.
Can anyone else advise.
KK