I have Avast running on my laptop (vista) & got a virus. The firewall notification came up & I just clicked X out of it & proceeded to the Anti-virus software to see what it was. It said there was threats/virus but had already quarantined the threat/virus. So all was supposed to be good… yet I am still getting a lottery pop-up every 45 minutes to an hour while online. When offline I still get the pop up (45min-1hr) but it is just a blank explorer window. The Avast says there is no threats but I know something is still there/going on. How can I detect it & full remove or really quarantine it?