To start avast! from the Start menu, see screenshot for directions.
There is also a shortcut that should be on the desktop to start the
program. For 'Options and settings' click the small
on the
Taskbar.
Clickable Areas:
avast! Antivirus from the Start menu, avast! Antivirus using the
shortcut on the desktop and the small 'a' on the Taskbar.