I have a computer that is not connected to the Internet. I update Symantec Endpoint Protection's Antivirus and Antispyware Protection manually. The Proactive Threat Protection always says "Waiting for Updates." How can I update PTP without an Internet connection?
It looks like you can copy this directory (or its Windows Vista/7 equivalent) from an updated machine to your other machine.
I'm not sure if you have to shut down the SEP during the process, and don't have it available to test, but that looks like a reasonable solution.