I am using outlook express and windows XP (SP2).
With Windows 2k\XP, avast 4.6 has a new mail detection that will work automatically. Please, set up your email account just as avast does not
exists. It will detect the pop3/smpt/imap ports and scan your messages. Can you make a try and see if it's ok? New email detection is automatic and do not require user interaction. Anyway, spam killer applications need manually change email account settings
![Wink ;)](https://forum.avast.com/Smileys/default/wink.gif)
If that does not work, can you try to repair your installation?
Go to Control Panel > Add/Remove programs > avast! antivirus > Remove
Then choose Repair function in the popup window (Repair).
You must be connected to the internet while repairing.
If this does not help, can you uninstall / boot / install / boot again?