Although I find firing you for that silly and not a smart move from your boss the policy seems necessary after a few years in IT. We don't even have a minimum

Although I find firing you for that silly and not a smart move from your boss the policy seems necessary after a few years in IT. We don't even have a minimum amount of virus, if we or the client suspect there is, no matter what an anti virus program says, we format the computer. It's easier, faster and infallible, not like antivirus that take more time than a fresh install to run and can miss viruses.