1. Open the main application window.
2. In the bottommost pane of the main application window, click .

   The Licensing window opens.

3. In the Licensing window, click Try.
4. In the window that opens, click Activate Trial Version.

   Kaspersky Internet Security connects to Kaspersky activation servers and sends data for verification. If verification is successful, the application receives and adds a license key for the free trial version.

   Click Finish to complete activating the application.

   Important: A trial version of Kaspersky Internet Security can be activated only if the application has not been previously activated on the computer.

1. Open the main application window.
2. In the bottommost pane of the main application window, click .

   The Licensing window opens.

3. In the Licensing window, click Activate.
4. In the window that opens, enter the activation code that you received when purchasing Kaspersky Internet Security.
5. Click Activate.

   Note: An activation code is a unique combination of twenty Latin letters and numbers in the form xxxxx-xxxxx-xxxxx-ххххх.

   Kaspersky Internet Security connects to Kaspersky activation servers and sends the activation code to verify its authenticity. If the activation code is successfully verified, the application automatically receives and adds the license key.

   Note: Depending on the activation code you have received, you may need to fill out a registration form or register on My Kaspersky.

   If activation code cannot be verified, a corresponding notification is displayed. In this case, contact the software vendor that supplied you with this activation code.

1. Open the main application window.
2. In the bottommost pane of the main application window, click .

   The Licensing window opens.

3. In the Licensing window, click Activate.
4. In the window that opens, enter the Kaspersky Small Office Security activation code.

   Note: An activation code is a unique combination of twenty Latin letters and numbers in the form xxxxx-xxxxx-xxxxx-ххххх.

5. Click Activate.
6. If you have the Kaspersky Internet Security version not intended for use within the European Union and you accepted the terms of participation in Kaspersky Security Network during the installation, the application prompts you to confirm that you want to participate in Kaspersky Security Network. In the Kaspersky Security Network Statement window that opens, click Confirm.

   To opt out of participating in Kaspersky Security Network, click Cancel in the Kaspersky Security Network Statement window.

   Note: If you rejected participation in Kaspersky Security Network when installing Kaspersky Internet Security on the computer, the application does not show the Kaspersky Security Network Statement window.

Kaspersky Internet Security connects to Kaspersky activation servers and sends the activation code to verify its authenticity. If the activation code is successfully verified, the application automatically receives and adds the license key.