Surround 5.1 does not work in Forza 6 Apex (PC)

I have 5.1 surround system nd an external 5.1 creative sound card , i have not any problem in media players or retail-STEAΜ-Origin games but in Forza apex 6 , Horizon 3 demo and any free game from windows 10 store i have troubles… About Forza apex 6 and horizon i get just stereo sound from 2 front speakers and in case of GT Racing 2 real car experience but in 1-2 free games i have no any sound…Something goes wrong with windows 10 apps and probably creative drivers or so but i can not find it… Any suggestion would be wellcome…

I am still having the same issue… I normally get surround sound in Killer Instict which i have on xbox live…