Naïve question – but if you install an alternative OS/boot disc on USB, and boot an XP machine from USB – if there’s a tool on the USB alternative OS/boot disc that the AV installed on top of your normal OS, i.e. windows XP would find as “malware” will it flag it up, or as you’ve booted from USB and there’s no AV on the USB itself or on the alternative OS/boot disc installed on the USB – does that mean you bypass the AV issue? Reason I ask is a tool that runs on both linux/windows is wrongly being picked up by mcafee as malware, when it isn’t. But I read if you get an alternative OS that can boot from USB install the app on that OS and then you should be able to run it and MacAfee is taken out the equation. I've used USB as an example but if you had multiple OS (vitual) on the same host and boot from another non windows one would the same apply.