Windows Server 2016 Standard Iso Not Evaluation ((better))

The Windows Server 2016 Evaluation ISO is essentially a full-featured version of the operating system that Microsoft provides for free to potential customers. It is typically valid for 180 days. The primary issue for administrators is that while the software inside the ISO is identical to the retail version, the licensing channel is locked.

slmgr /xpr

Even if a file is named generically, you can verify it is the Evaluation edition by checking the following: Windows Server 2016 Standard Iso Not Evaluation