How to solve SQL Server 2014 Installation error “Error while enabling Windows feature: NetFx3, Error Code: -2146498529 “
You might run in to an error installing SQL Server 2014 on Windows server 2012 that has the same error message as below.
It has a simple fix for it. On your Server Management window click on Manage then click on Add Roles and Features.
Keep clicking on Next till you get to Features. Then from the features list box click on .Net Framework 3.5 Features.
On the confirmation tab you might get a warning like the one below. To specify an alternative source path. To do that insert the windows installation cd or mount the virtual cd the specify the [cd drive:]\Source\Sxs
Or if you are a PowerShell nerd you could install the framework using ps. First you need to open PowerShell as Administrator then check if you have .Net framework 3.5 is installed
PS >import-module servermanager PS >add-windowsfeature NET-Framework-Features -source [Your installation CD]