I have FSX-SE which is mostly (but not always) stable.  I have just posted about random CTD's on the appropriate forum page but once in a while, and especially recently, the FSX settings on my controllers (all Saitek) change without my knowledge or command.  Yesterday I discovered the FSX-SE 'sensitivity' sliders for controllers had reset to 'default', and Scenery 'sensitivy' sliders had moved all the way to the right - i.e. 'maxed out'.  Assignments on various 'Joystick' functions had changed from one controller to another (i.e. functions assigned to the Yoke had aslo appeared on the Saitek Rudder and Throttle Quadrant.  I carefully deleted the 'extra' (and I assume potentially conflicting) assignments, saved, closed and re-opened FSX-SE.  When I checked, a couple of the 'rogue' assignments had reappeared, although the sensitivity sliders had stayed where I put them.

Has anyone any idea what is going on?  Is this a known FSX 'Steam' issue, a Windows 10 issue, or something else?  I love my SIM but it's depressing to spend so many hours sorting it out rather than enjoying it.

My SIM computer is a 4 core 3.6 Ghz PC with 20 Gb of RAM and an nVidia 1050ti graphics card with 4Gb.

Andrew Gold (threebears)

Interesting question. I have Steam Edition, but I'm on Win7 and no - my controller settings haven't changed..