I upgraded to Windows 10 last month. The transition seemed very smooth. Prepar3d is still running with out problems and everything seemed in perfect order.

But last week I noticed one thing that not was okay. My joystick assignments have been set to default.

It seems that in the process of updating my CH yoke and pedals have been deleted from the windows library and then reinstalled. This causes P3D to see them as new joysticks with default mapping of assign buttons.

That caused a lot of problems because my throttle kept going to 65% (Remember that figure from this video?) and later on to full throttle. It turns out that the handles on my CH yoke were set at (guess for you self) 65%. Se after deleting the axis assignment i P3D my thrust settings  went back to normal.

So now I might have a chance of calibrating my joystick.

I was not aware of this bug in the Win 10 upgrade process. But that is something that might cause problems. I was not aware of the changed assignment because I did not change anything is the assignments.