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My sound card is onboard (MSI-MS 7693), and always will be detected automatically by windows after re-installing windows (Detected true driver: RealTek), its been a week every time i power my pc on, after login to windows, it starts detecting wrong audio device (it detects nVidia High Definition Audio instead of RealTek) and try to install it and every time fails, and result is i have no sound! what is problem and how can i solve it? re-installing windows is a real mass and i try to avoid!

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Next time you load your machine I assume Windows will detect the incorrect hardware - when it does, go into device manager and see if the incorrect item is listed and try to disable it. –  Dave Dec 10 '12 at 8:36
    
i disabled them many times and every time after restart every thing starts again just like the last time, –  Armin Dec 10 '12 at 8:41
    
yes, my chip is up to date –  Armin Dec 10 '12 at 8:49
    
there is no other sound card –  Armin Dec 10 '12 at 9:35

3 Answers 3

Try clicking on the button down right on the taskbar, where you can set the volume. Open, and click on "mixer". In the "Device"-area, you can click on this dropdown menu and choose between the outputs. Choose your Realtek driver there.

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in this situation this button does not open the Mixer, it opens Troubleshooter. –  Armin Dec 10 '12 at 8:43

Similar to RnBandCrunk answer, but I suggest right clicking on the speaker symbol in the task bar (near the clock) and selecting playback devices:

enter image description here

Under the playback tab you will see what is available - select the device you want to use and set it as default.

enter image description here

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there is no audio device listed, every time windows detects wrong device and try to install it, it fails! –  Armin Dec 10 '12 at 8:48
    
Are you installing the driver from your machine or automatically from the internet? If you haven't, download the driver to your machine and when you install it, browse for it and install it manually. –  Dave Dec 10 '12 at 8:50
    
i tried both ways, automatically and manually! just nothing happened –  Armin Dec 10 '12 at 8:51
    
Did you download driver from uk.msi.com/service/download/driver-2584.html –  Dave Dec 10 '12 at 9:47
    
yes, i downloaded the driver too, there was no difference at the end! –  Armin Dec 10 '12 at 10:19
up vote 0 down vote accepted

Problem was caused by installing NVidia Graphic Card update, it was included with HD Audio Driver and made conflicts with previous installed driver. I restored my windows to before installing that update and everything works fine.

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I think the nVidia HD Audio Driver is required when you're using HDMI and want sound to be passed through that. When I recently moved a PC from using speakers to outputting sound through a TV, I found this driver had to be installed otherwise you ended up with no sound. –  Richard Mar 11 at 15:17

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