when using avast to scan (and to delete viruses/trojans)
the program is running, doing a scan.
and then it stops asking what to do with the virus.
to delete or whatever.
but as I have a very large hdd I would like it to automatically delete viruses while scanning,so that I can set it up to scan overnight.
Is there a way to configure avast to delete without prompting?
thanks for any response
from hatsumi.
No. Scheduling and automation are only available in Professional version.
To schedule automatic scans in Home version: http://forum.avast.com/index.php?board=2;action=display;threadid=3796 
These advanced automated options are only available in the Pro version.
You only have a limited option in the Home (free) version, to send the infected file to the virus Chest (silent mode, with general answer no).
My own feeling on this is you should use the default interactive action. This way you know exactly what is going on with your system. If you are getting so many warnings, that you want to automate this process, I believe you should review your security practice - filter emails at source, delete from server rather than download them, sites they visit, etc.
See the avast help file, Resident Protection: Standard Shield Provider Settings - “Advanced” Page.
Click on Standard Shield and then on Customize.
Go to Advanced tab and select Silent Mode and the General answer No.
Leave the file in the chest for a week or two (it can do no harm from there) to ensure no adverse effect from being moved to the chest. Then scan the file again in the chest to ensure it is still detected as infected and if so delete it from the chest.