"Turning off your anti-virus software is like walking outside naked....no one wants to do it and no one wants to see you do it."
Somewhat. Turning off save and accurate AV is not wise for most. Not turning off the heuristic garbage foisted on unsuspecting users is worse than going outside nekkid. Heuristics are simply wild guesses as to what someone might create in the future. They are the cause of most false positives, and issues like Tom likely had. The ability to correct an issue by turning off something proves the something was worse than useless.
How much time has Tom spent on this issue, caused by lousy AV? Worse yet, AV which does nothing all year is good, since most don't do stupid things, but AV which is often popping up "warnings" (usually false positives), just to get renewals, is robbery.
I will say it forever, use the AV which is part of your OS provider's offerings, which is updated almost daily by the OS, and don't waste a cent on third party AV. OR, at least, update your third party AV daily, and hope they are not defrauding you (and everyone else too) with their false positives.