Choose your preferred language and select the 64-bit ISO option.
If you are a Volume Licensing customer, you can download the full retail/volume ISO under the Billing > Your products > Volume licensing tab. Steps to Download (Evaluation Center) Download W2012R2 Server ISO
This is the primary, free, and legal source. You can download a 64-bit ISO for a 180-day evaluation. Choose your preferred language and select the 64-bit
(Hyper-V or VirtualBox)? How to convert an evaluation to a full version ? Windows Server 2012 R2 | Microsoft Evaluation Center Download W2012R2 Server ISO
During setup, you can choose between Server Core (headless, recommended) or Server with a GUI (full desktop experience).
