Ok so let me give you a little rundown of what I'm doing, how and why. Also keep in mind this has nothing to do with windows 10, I had the same issues with Windows 7, 8.1 and 10. So I have a Sound Blaster X-Fi sound card which has digital (optical) in and out. So being that I not only use my area for computer gaming but console gaming too and there is no actual stereo in this area I wanted to use the 5.1 speaker system I have for my computer with my console as well. So I ran a optical cable from the TV to the optical in port on the computer and went into the recording settings within the sound options and set the optical in to listen. This has allowed me to use the 5.1 system however the computer is only listening to the optical in port in 2.1 not 5.1 so I don't get real surround sound. Is there some way I can get the computer to actually take the 5.1 signal from the optical cable and properly put it out via the regular 5.1 headphone jacks to my computer speaker system? Please help!