Install .NET Framework 3.5 on Windows Server 2012 R2

During .NET 3.5 install on Windows 2012 R2 (or 2012) a stopper warning comes as below.

“Do you want to specify an alternate source path? One or more installation selections are missing source files…”

Solution:

From command prompt use below command:

#dism /online /enable-feature /featurename:NetFX3 /all /Source:E:\sources\sxs /LimitAccess

Where E: is your Windows Installation Media drive letter.