Recently I upgraded to windows 10 and now there is no 5.1 surround audio and the front panel headphones do not work. My sound card is the integrated VIA VT1708S. There is only stereo output, that is only the front left and right speakers work. However, on booting with windows 8, 5.1 surround works along with front panel audio. I have installed the windows 8 64bit drivers as there are currently no Windows 10 drivers available. Also, the VIA HD VDeck does not work. I have tried several tweaks including changing sample rate, clean install of windows etc, I would be willing to provide any information if required. Any help would be appreciated. Thank You.