Please find the Symantec Endpoint Protection 12.1 RU1 MP1 Client-only patches for Symantec Endpoint Protection 12.1 in the Attachments section.
Release Date: April 27, 2012
Description: This .zip file contains patches to upgrade Symantec Endpoint Protection 12.1 32-bit and 64-bit clients to version 12.1 RU1 MP1 (12.1.1100).
NOTE: This patch only upgrades clients. If you need to upgrade your Symantec Endpoint Protection Manager to 12.1 RU1 MP1, you must download the complete update from File Connect. Once you have upgraded the manager to 12.1 RU1 MP1, you can also upgrade clients using the auto-upgrade mechanism built into the Manager Console.
For additional information about changes in RU1 MP1, read the Release Notes, as well as the list of new features and fixes. An MD5 for the .zip file is also available below.