I was installing SQL server 2013 on Window server 2012 using Hyper-V and i was hit by below 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.
1. Insert your window server media (iso file)
2. Open the command prompt and run it as administrator
3. Type the below command:
dism /online /enable-feature /featurename:netfx3 /all /source:d:\sources\sxs
this is the easiest way to install netfx3.
Hope this article will help you :)