I am currently using AVG Anti-Virus 7.0 Trial Version. It is my understanding that its not free any longer. I believe to continue to receive updates you have to upgrade to 7.0 for approx $33.00. Please correct me if I'm wrong.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .