How to update avast! antivirus 2010 5.0.418

You can simply update the strong headed updating avast!, especially 5.0.418.
the steps are easily to practices
1. start menu
2.control panel
3.security center
4.turn off firewall
THAT IS IT VERY EASY!!! ACTUALLY
5. restart the system
6.then open avast!
7.update
wakoo it will work "insha_Allah"