Hi
To create a SEP 12.1 package
Open the Symantec Endpoint Protection Manager console.
On the Admin Tab, under Tasks, click Install Packages.
Under Install Packages, click Client Install Settings.
Under Tasks, click Add Client Install Settings.
Specify the name you would like the custom Client Install Settings to have.
Give the custom Client Install Settings a description.
Select an installation type
Select the installation location (default or custom folder).
Select whether or not to maintain all previous logs, policies, and client-server communication settings
Viewing the 'Schedule Reboot' tab, consider whether to force or schedule a reboot.
Click OK.