I had A10-C V1.51 running on Win 10, but after a Windows update it no longer works. See http://SimHQ.com/forum/ubbthreads.p...10-c-v1-51-working-on-win-10#Post4468058
Eagle Dynamics help referred me to forum, but I have given up, DCS A10-C no longer works for me.
Steam forces updates, no way to stop prior to playing, unless offline.
I have the Steam Huey version, havent run it in a while (and only beginner pilot so not familiar with all features), I believe it to be updated but will check. Steam Huey version ran fine for me last time, (several months ago) but with updates, from both Windows and DCS I dont know if still running).