To add an activation code:
The Activate with an activation code window opens.
The activation code will be sent to Kaspersky activation servers for verification.
If the code you entered is invalid, the Activate with an activation code window will display a message informing you that an invalid code was entered. You can try to enter the activation code again in the same window.
If the code you entered is valid, you will see the terms of the End User License Agreement corresponding to the entered activation code. The Activate with an activation code window closes.
You can also activate the program with a key file. You are advised to activate the program using a key file.