Hi
Thanks for the advice
I also submit a ticket to Avast Tk.
They answered to me within 2h, incredible speed
First Step they said to me try a repair.
As i did it before and doesn't work they said to me to try this:
Uninstall Avast using Avast clear and install Free Avast with full Avast.exe off line
Well it seems to work fine now
Will wait few day before say it's ok, as i must do it the same on my hp mini on Seven Starter 32.
Next time to avoid problem, will uninstall all before new version.
Maybe something wrong inside update which make trouble with option " Enabled signature Email Avast ".
Wasn't so close to say that something wasn't good with this option.
Very fast answer for Avast much appreciate this
Thanks for all people who helped me
Gerald