How to remove Trojan's automatically ?

Avast Free Antivirus / Premium Security
1

I have Avast! 4.6 home edition. It announce “A Trojan Horse Was Found!” and I always prefer to “Delete…”.
Doing it, a new message asking me how to delete:
a- into recycle bin, or b- delete permanently, and if yes, “if necessary, to delete at next system start”.
Sometimes I get a lot of them simultaneously, and it is annoying to delete each and everyone of them.

My question: How to configure Avast! to delete automatically ?

2

For Home Edition you can use only Silent mode with general answer No.
Professional Edition is a bit more flexible. You can adjust full “script” on what to do with detected malware.

3

I have set the silent mode with answer No (cancel)
But when avast finds a virus while scanning through manual scan, it keeps asking me what to do with a file with a virus instead of moving it to chest

4

I think the Silent Mode works only for the on-access scanning… The Pro versions allows the automatic mode for on-demand too 8)