Why migrate from Windows Home Server to Windows Server Essentials? Customers moving to a modern operating system will benefit from dramatically enhanced security, broad device support, higher user productivity, and a lower total cost of ownership through improved management capabilities. Today’s new hardware is significantly faster and cheaper and can better handle the latest Windows security infrastructure, roles and features. If you are still running Windows Home Server 2008 or Windows Home Server 2011, Microsoft recommends bringing in a new device running Windows Server Standard or Windows Server Essentials and migrating your roles, features and data to the new appliance. This means that Microsoft will no longer issue security updates for the Home Server-specific components that make up Windows Home Server 2011.
You can see all of the support lifecycle dates on the Microsoft Lifecycle page
Windows Home Server 2011 mainstream support ended in the second quarter of 2016. First published on TechNet on Jul 03, 2017