To make use of the features of the application and its additional services, you must activate it.
If you did not activate the application during installation, you can do so later. You will be reminded about the need to activate the application by Kaspersky Internet Security messages that appear in the taskbar notification area.
To activate Kaspersky Internet Security:
Open the main application window.
Go to the activation code entry window using one of the following methods:
Click the <license status>link located at the bottom of the main application window, open the Licensing window and click the Enter activation code button.
Click the License is missing link located at the bottom of the main application window, open the Activation window and click the Enter activation code button.
In the lower part of the main application window, click the Enter activation code link.
In the Activation window, perform the following actions:
Click on the link Where can I find an activation code?, go to the Knowledge Base website to read about how you can find your activation code if you have forgotten or lost it.
Click the Purchase license button, and go to the store to buy the application license.
Click the Activate trial version of the application link to activate the trial version of the application.