Go to Administration > Settings > Product License.
Click the name of the license service.
In the Product License Details screen
that opens, click New Activation Code.
In the screen that opens, type the Activation Code and
Register a service before activating it. Contact
your Trend Micro representative for more information about the Registration
Key and Activation Code.
Back in the Product License Details screen,
click Update Information to refresh the screen
with the new license details and the status of the service. This
screen also provides a link to the Trend Micro website where you
can view detailed information about your license.