Windows 10 Can't upmix/autofill to 5.1

[design1314]

Hi I have Windows 10 and Nvidia GTX 650 driver that's connected to a 5.1 Receiver with HDMI cable. I can't get 5.1 sound out of my speakers when I play music on iTune, or watch Youtube (but VLC Player works). I understand that the sources are stereo but either Nvidia GTX 650 or Windows 7 would upmix it before.

Can someone help? Thanks.

 

[Rocky Bennett]

You need to adjust the settings on your receiver.