Avast! And Malwarebytes for scanning more stuff.
Malwarebytes is possibly the best thing since sliced bread.
My dad bought his first computer recently, and was such an idiot about everything. He needed flash player for something and somehow ended up buying $70 worth of programs to fix it, which were all those fake pc scanning programs you all know about.
He's so proud though, and doesn't accept my advise.
I put some essentials on it, like Firefox and Malwarebytes one day for him after he bought it. He had a problem and was too proud to bring it to me so he paid some over-expensive computer technician, who 'nuked it' (reformatted in his own words). According to dad, the technician said Malwarebytes is a dubious program, and I didn't hear the end of it, "I told you so son!".
I love my mother.
