You will find more detailed information about how to correctly prolong and update the license in KB5237.
How to renew license in Kaspersky Small Office Security 2 for Personal Computer?
Release of antivirus database updates (required to protect your computer/server/mobile device)
Providing technical support over phone / web
Release of patches for the application (addressing detected bugs)
Please let us know what you think about the site design, improvements we could add and any errors we need to eliminate.