Malware Defense blocking AVG reinstallation

Any help is greatly appreciated, thanks!

Inability to install AVG 9.0 because of Malware Defense.

I've utilized the great Bleeping Computer thread about running the kill program step by step, but to no avail.

When I run Malware Bytes now, it doesn't pick up anything.

So I started over, and when I try to install AVG 9.0, it still say "potentially incompatible software found" in the way of Malware Defense. It's of course not in Add/Remove Programs like AVG suggests in finding and removing.