Do you have any other security software on your machine now or in the past (antivirus, firewall, or other)?
1. I'll let you answer the question above first. How did you remove your previous AV (the vendor's uninstaller tool or some other way)?
2. To clarify, Avast 5.0.677 was a clean (fresh) install and not an upgrade from an older version. Correct?
3. Did you reboot after your install?
4. Have you updated your definitions of Avast?
5. Are all the Avast Real-Time Shields up and running?
6. Have you run a Full time scan? If so, did you come up clean (OK)? If you didn't, update your definitions and run it. Please report back to me with the results. If anything comes up positive, put it in the Virus Chest and do
NOT delete it; I will need a screen shot (ideally) or the exact spelling of anything that is put in there.
Otherwise, is your machine acting normal? Thank you.