Free License would be expire in soon.

Now I have used Avast free version 1 year., But I have seen notification from Avast the license would be expire within 1 month and 10 days, So how should I do ? And now I’m have a new laptop how i can get the new free license with the same user I already used with this laptops

http://www.avast.com/faq.php?article=AVKB9#articleContent