New ~repack~ — Microsoftwindowsnetfx3ondemandpackagecab Download Server 2012 R2
Add-WindowsCapability -Name NetFX3~~~~ -Source C:\Temp -Online -LimitAccess
Mount the Windows Server 2012 R2 ISO file onto your server or insert the physical media.
There are two primary, official methods to obtain this specific .cab file for Windows Server 2012 R2:
Prerequisite: have local admin rights.
The server cannot connect to the internet, and the local source path is missing or invalid.
If you have already extracted the specific .cab file (usually named microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab ) from the sources\sxs folder and placed it on your desktop (for example), you can install it using the Deployment Image Servicing and Management (DISM) tool.
Image Version: 6.3.9600.17031
What (if any) is displaying on your screen? Are you using a virtual machine or bare-metal hardware?