Azure Hybrid & Cloud Migration Blog

You might face difficulty for installing .Netframework 3.5 on Windows Server 2012, where the Server Manager fails and tells you that due to the unavailability of the required source file for .NetFramework 3.5 it cannot continue the installation.

As a quick solution, you can use the below command for installing .Netframework 3.5, which requires you to amount the Windows Server 2012 installation media to the server.

“C:\Windows\system32>dism.exe /enable-feature /all /featurename:NetFX3 /online /Source:d:\sources\sxs /LimitAccess“

Hope this quick fix will help you to get this done.

Cheers!