What software is out of date.
The one you posted a log for: that's how I could tell it was outdated, because your version number is not the current one.
As I've said, if you ran the Live Update, it's not normally possible to get an outdated version of the software, since the Live Update will always download the latest one, and this seems to indicate you have a problem with the antivirus, which is why I told you to configure it properly and run the update again.
About khpx, if you have any Flightbeam sceneries that use their own Manager, you shouldn't install the old versions, because the Live Update will try to updated them, in order to support users that still have the previous version. So yes, manually removing the fsdreamteam\couatl\KPHX folder and the Simobjects\Flightbeam_KPHX folder is a good way to remove it without uninstalling and reinstalling everything.