Dear Team
Avast not updating from Jan 31, 2012 I have lic valid will 2014 March
You mean the virus definitions are not updating since January 31st? And you are just now saying something? I would have brought this up sooner, if so.
Anyway, see if a Repair works
How2; Proceed as if you are going to uninstall Avast! normally by way of the Control Panel, but choose the Repair option.