If you have an existing installation and want to verify whether it's an evaluation copy, you can use the following commands in an elevated Command Prompt:
The evaluation version of Windows Server 2016 Standard is a fantastic tool for testing, but it is a liability for any long-term deployment. This article will cover everything you need to know: the critical differences between Evaluation and Full (Retail/VL) versions, how to legally obtain a non-evaluation ISO, how to convert an expired evaluation without reinstalling from scratch, and best practices for deployment. Windows Server 2016 Standard Iso Not Evaluation
Prepare media