Avast Boot Scan with command

Launch Startup Scan from a command window

Start > cmd
as Administrator
Type in the command shell:

cd c:\Program Files\AVAST Software\Avast

or go to the folder where Avast is installed.

Write Command:

sched /A:*

Responds:

Scheduled

restart the computer using the command:

shutdown /r

Avsat scans computer before Windows starts.