Hmmm... Don't have either, on many networked computers, and have never had a virus since Windows 95. 'Course I don't go to any porn sites, hmmm? And attachments are not allowed in emails except MS documents and image files. So I guess I am an IDIOT.
You do know that anti-virus programs cause more problems than virus's, right? And that those programs look like a virus to another AV program. They take over your computer and cause it to run slower and with a lot of glitches.
AND the time between updates to your definition file is long enough for a fast-acting virus, which most are, to get you before you get a new definition file.
Follow a few easy rules and you won't get a virus, the built-in MS AV is better than any other anyway. But what do I know, I'm just an IDIOT who doesn't sit around watching porn all day.
Thank you for proving my point