

This mixture of versions is usually a temporary condition as the endpoints in the organization are upgraded. The Endpoint Protection 14 manager can successfully deploy, administer, and update the legacy version of Endpoint Protection 12.1 clients for these operating systems. Symantec strongly recommends that you replace these machines with a current Microsoft supported operating system for the best security and reliability for today's threat environment.


These legacy operating systems are foundational are not capable of supporting the new protection technology and features, or the performance enhancements in Endpoint Protection 14. Microsoft has discontinued the support of Windows XP and Server 2003 operating systems and is no longer patching or updating these systems.
