Likewise. As an AV it's as good as any other but people are lazy and just accept a default installation which loads a pile of crap such as this web tune-up. Yes, it's optional but it's opt-out not opt-in. Go the custom installation route and just install the core AV module.
At the moment such user behaviour is a raw nerve, I've just cleaned my sister-in-law's laptop for the umpteenth time and the number of tool bars and stuff that starts when the machine does and is set to auto-update had me climbing the walls.