I don’t remember exactly, I installed Avast Free, then I went to Programs and Features to remove components I don’t want or need because custom installer isn’t an option anymore and after I did the changes and rebooted new kind of popup appeared with animated buttons which I thought were just animations but were apparently real buttons activating all the premium features and converting Free version to Premium trial without clearly asking or telling me what’s happening. I really don’t like such behavior. And Avast has been doing this a lot, doing sleazy and deceptive dialogs and activating things you don’t want.