Norton AntiVirus and Internet Security Suite. (also includes anit-spam)
Norton is probably the best AV software (no offense) but for instance the millisecond something tries to enter your pc it deletes it . I downloaded a test-virus on purpose and all I did was click on the link and it automatically deleted it. Hm! Well maybe some other AVs like McAffe does that too but... yeah... I'm so PROUD of Symantec! Hehe!