1. First of all, I never had that message popping up before, although I've used Malwarebytes for a while. It has just happened lately when I scanned my system with it, and this software found something wrong in the registry and recommended to delete it. So I did. Unfortunately, I didn't leave that log, so I can't tell you what was it.
2. I have ESET Smart Security 3.0.672, Trojan Remover installed. And none of them show any signs of infection on my PC.
3. I've used it just for normal precaution, with now special intentions.
P.S. Sorry for off-top, but recently I've realized, that I'm not getting XP updates, although they are on automatic mode. So, I'm surprised with that as well.
Any ideas? Thank you