Symantec Endpoint Protection 11.0 combines Symantec AntiVirus with advanced threat prevention to deliver unmatched defense against malware for laptops, desktops and servers. It seamlessly integrates essential security technologies in a single agent and management console, increasing protection and helping lower total cost of ownership.
Install Notes:
Just unpack & install,not need any crack or patch 
Download : Symantec Endpoint Protection v11.0.2020.56 Retail (32-Bit) | Mirror
Download : Symantec Endpoint Protection v11.0.2020.56 Retail (64-Bit) | Mirror
9Down