???``hello! i’m french person and i want to know something!
If I have avast free home edition and the 14 or 16 month is finish …Do I can’t deleat this and reload the same avast free.
:-*tank you and I hope you understand.
Welcome to the forums, missnew! 
You do not need to delete/un-install avast. Trying to reload it without a new registration key will not work.
What will work is going to the website and registering for a new key. Once you have a new key, remove the old key and insert the new key. Go to this page to register :
http://www.avast.com/i_kat_207.php?lang=ENG
I hope this helps you. If not, please come back and post again.