The main window of Avast! Professional Edition where you will be able to select the scan level and select the drivers that you want to scan. 

Resident Protection window of Avast! Professional Edition where you will be able to view a list with the scanned objects. 

The main panel of Avast! Professional Edition where you will be able to customize the sensitivity level for every category. 

The system tray menu of Avast! Professional Edition where you will be able to stop, start the antivirus protection, or scan objects. 

The Settings window of Avast! Professional Edition where you will be able to adjust and modify the general settings.