To add more to this please find the information below . (Page 142 ) Install Guide
To update Symantec client software with a LiveUpdate Settings Policy
1 In the Symantec Endpoint Protection Manager console, click Policies.
2 Under View Policies, click on and highlight LiveUpdate.
3 In the right pane, on the LiveUpdate Settings tab, click a LiveUpdate Policy.
4 In the lower-left pane, under Tasks, click Edit the Policy.
5 Under LiveUpdate Policy, click Advanced Settings.
6 In the Advanced Settings pane, under Product Update Settings, do one of the
following:
■ To automatically update client software, check Download Symantec
Endpoint Protection product updates using a LiveUpdate server.
■ To manually update client software with the Upgrade Groups with Package
feature with the Symantec Endpoint Protection Manager console, uncheck
Download Symantec Endpoint Protection product updates using a
LiveUpdate server.
7 Click OK, and then apply the policy to a group or a location in a group.