Product manual

These downloads are called Pulse Updates. The Pulse
Updates are lighter and faster than Automatic
LiveUpdate. It keeps your computer secure from the
ongoing threats on the World Wide Web.
When Pulse Updates are enabled, LiveUpdate checks
for definition updates every few minutes and
downloads the streamed virus definitions. The Pulse
Updates protect your computer from the latest security
threats without compromising your system
performance. Even if you turn off Pulse Updates,
LiveUpdate picks all the missed streams and it updates
your computer during the full definition updates.
Each LiveUpdate session checks if the Smart
Definitions option is turned on or off, and downloads
and installs the updates based on the option settings.
To access the Smart Definitions option, go to the
Norton Internet Security main window, and then click
Settings > Updates > Smart Definitions. By default,
the Smart Definitions option is turned on. As Smart
Definitions are only a subset of all the virus definitions,
you can minimize download time, installation time,
and memory consumption. However, if you want all of
the virus definitions to be downloaded and installed,
you can turn off the Smart Definitions option.
Checking for updates manually
LiveUpdate checks for updates to the product that is
installed on your computer.
These updates protect your computer from newly
discovered threats. LiveUpdate uses the Internet
connection to connect to the Symantec server, checks
for updates, and then downloads and installs them
automatically.
You should have the Automatic LiveUpdate option
turned on to ensure that you have the latest definition
updates and program updates. Definition updates
contain the information that allows the product to
recognize and alert you to the presence of a specific
virus or security threat. Symantec issues program
Getting started
About LiveUpdate
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