Hmmm, Saquear, very interesting. Good that you remember where you got the virus from. Yes, AVG interface is a little easier to use.
I would uninstall Avast. Then run a fresh copy of it and see what it picks up. However, before doing that, try going to Trend Micro and let them do a free scan to see what they come up with. If they come up with nothing, then do this...........................go to system restore and disable it then reboot and run AVG or Avast which ever you like the best and see if they pick up the virus, if they do, then take appropriate action. After that dont forget to reactivate system restore again. That should do it. Just in case, to get to system restore go to start, programs, accessories, system tools etc.
Yes, feel free to ask anytime, thanks. Dont know everything of course but willing to share what I have as are all here at PCMech.
Hope this helps......................Sterling