3 Replies Latest reply on Sep 7, 2016 7:58 PM by Intel Corporation

    No surround sound or encoded formats after upgrade to Windows 10


      Hi, I have been struggling all day with no sound on my PC after upgrading to Windows 10. Any help would be greatly appreciated. Thanks!





        Answers (N/A if not applicable)


        Provide a detailed description of the issue

        I just upgraded to Windows 10 from Windows 7. After the upgrade I am no longer getting any sound. Furthermore, the Intel Display Audio sound configuration only has an option for 2 channels. The option for 7.1 is no longer there (it was there in Windows 7). Under encoded formats it no longer shows support for Dolby Digital, DTS, DTS-HD MA, and Dolby TrueHD. (These were all listed under Windows 7)

        Please place an X to the right of the option showing how often you see this issue using specific steps. (Ex: 'Every few times a game is started it flickers.' <- This would be "Often")

        Always (100%): X

        Often (51-99%):

        Sporadic (20-50%):

        Very Sporadic (<20%):

        Hardware (HW)

        Brand and Model of the system.

        Home built

        Hybrid or switchable graphics system?
        ie Does it have AMD or NV graphics too?


        Make and model of any Displays that are used to see the issue (see note2 below).
        = Local Flat Panel (Laptop panel)
        EFP = External Flat Panel (Monitor you plug in)

        Epson 5030 UB Projector

        How much memory [RAM] in the system (see note2 below).

        16 GB

        Provide any other hardware needed to replicate the issue.
        ie: Cables&brand, cable type [vga, hdmi, DP, etc], dock, dongles/adapters, etc

        Yamaha RX-V675 Home Theatre Receiver

        Hardware Stepping (see note1 below).


        Software (SW)

        Operating System version (see note2 below).


        VBIOS (video BIOS) version. This can be found in “information page” of CUI (right click on Desktop and select “Graphics Properties”.


        Graphics Driver version; for both integrated Intel and 3rd party vendors (see note2 below).


        SW or Apps version used to replicate the issue.



        Single display, clone, or extended (see note2 below).


        Display resolution & refresh rate setting of each display (see note2 below).


        AC or DC mode, i.e. is power cable plugged in or not?

        Plugged in

        How to repro

        Please provide steps to replicate the issue.  These steps are very crucial to finding the root cause and fix.
        A screenshot to illustrate the issue is a huge plus. A video of the failure is even better! Attach to the post or provide the YouTube link.

        1. Upgrade to Windows 10


        Other Notes:

        • I have updated the Intel Graphics drivers to the latest according to the Intel Driver Update Utility.
        • All of this worked perfectly fine in Windows 7. I only had problems after I upgraded to Windows 10.
        • Currently I have no audio at all except for system sounds. Video is silent. This is my home theatre PC so I'd like to get it working to be able to watch movies again.