I ended up downgrading to Windows 10, I plugged the joystick and throttle in, stick s not calibrating in joy. cpl. Put my Avast Premuim on and it tells me that six drivers need to be upgraded, which I do. It then tells me there is 2.9 gigs of junk on my drive including old windows files and registry fragments. I tell it to delete, which it does. Reinstall FSX SE, assign my axis to the throttle and stick, and this time the stick actually appears to pick it up. I then loaded the default Baron in the Air at Friday Harbor, flew, and everything was working correctly! Buggered if I know what I did, but I will take the win. Do a restore point tomorrow morning first, then install P3d 4.
I had returned X PLANE 12 for credit, but will buy it again in a few weeks. I've just lost a front filling and that's a bit more important!