One moment, please – Windows Server 2012 R2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
So if you download Windows Server from Microsoft, you need to upgrade it to full version to use the Windows Server product key. Image depicts the Windows Server R2 license info screenshot which is the Windows Server version to upgrade from the evaluation. How to upgrade Windows Server R2 Evaluation to full version. Because Windows Server Evaluation can’t change the product key.
 
 

Evaluation Versions and Upgrade Options for Windows Server | Microsoft Docs

 
Converting evaluation versions of Windows Server to full retail versions · From an elevated command prompt, run /dlv; evaluation. Explains how to upgrade or convert Windows Server to newer versions, different editions, or switch between licensing options.