A client computer receives the content updates from LiveUpdate in the following situations:
LiveUpdate scheduling is
enabled for the client computer.
The client computer's virus definitions are old. The client computer is unable to communicate with Symantec Protection Center.
The client computer has repeatedly failed to communicate with Symantec Protection Center.
A portable computer might be unable to communicate with the server because it is disconnected from the network.
The computer does not receive the content updates from LiveUpdate when the virus definitions are current and the computer can communicate with Symantec Protection Center.