Article ID: 2468019 - View products that this article applies to.
The evaluation version of Lync Server has reached its expiration date.
Use the step by step information that is listed in the following Microsoft TechNet article:
Updating From the Evaluation Version of Microsoft Lync Server 2010
Updating From the Evaluation Version of Microsoft Lync Server 2013
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.