I recently upgraded to the new 8.5 free version of AVG. Previously I had run this in tandem with Avira and SuperAntispyware for well over a year. I began to get false positives and AVG began to not allow Avira to update. Called the Trojan Win32/PolyCroft. I finally had to uninstall AVG. I upgraded Avira to the newest free version and moved forward. Just a question? Wonder why I had no problems until now? AVG decide not to play well with others? Or is there an issue with Avira. I have had not trouble with Avira at all.