Free avast

Is there a free avast that is always free, i took a free version but then after sometime it stopped working saying pay.

yes avast free is always free … you just have to register once a year.
install avast free. http://www.avast.com/faq.php?article=AVKB3
register avast free. http://www.avast.com/faq.php?article=AVKB9

thank you