The License Information screen displays details about your license. You might have a fully licensed version or an trial version. In either case, your license entitles you to a maintenance agreement. When your maintenance agreement expires, the endpoints on your network will be protected in a very limited way. Ensure that you renew your license before it expires.
When a full-version Activation Code expires, you can no longer perform important tasks, such as downloading updated components or using Web Reputation.