Consider the following scenario:
- You install the Lync Server 2013 (February 2013) Cumulative Update on the Standard Edition, Enterprise Edition - Front End, or Edge Servers.
- You install the Lync Server 2013 (July 2013) Cumulative Update on the Standard Edition, Enterprise Edition - Front End, or Edge Servers
- You uninstall the Lync Server 2013 (July 2013) Cumulative Update on the Standard Edition, Enterprise Edition - Front End, or Edge Servers.