"another antivirus installed" reported during installation of Avast 8.0

I just installed Avast 8.0 after running several super uninstall programs on antivirus programs I know I’ve tried in the past. I THOUGHT I had them all uninstalled, but when Avast finished it announced that there was another antivirus and I should uninstall it. So, since Avast knows I have another antivirus, I think it would be nice for it to share WHAT antivirus that is so I can get it uninstalled. Ideas? Thanks in advance!

(sorry of I’ve double posted system says I’ve already posted this message but I cannot see it posted.)

Well you haven’t supplied us any information about your system but I would guess it is detecting Windows Defender so just ignore it if you are sure you have removed all third party AV’s.

attach a OTL diagnostic log, then we may spot the install/leftover files

http://forum.avast.com/index.php?topic=53253.0