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Windows 7: RealTek High Definition Audio randomly muting sound

08 Oct 2012   #1

Window 7 Ultimate 64
RealTek High Definition Audio randomly muting sound

I have 100 + XP SP3 and Windows 7 computers deployed in a digital signage system. Over the last month we have been getting complaints about sound not working. When I remote in I find the windows and/or the Realtek mixer master sound to be muted. I unmute them and then within a few hours or a few days they are muted again. These are basically dumb terminals with no kybrd/mouse/human attached. The problem seems to be spreading with 2-3 machines a week reporting the same error. Wondering if it was an auto update or something or if anyone else is seeing the same issue. I have it bandaged with the Nirsoft unmute CLI being run by Task Scheduler every few minutes. I have not reloaded drivers yet because the problem is occurring on different machines, different OS and both HDMI and VGA systems. Thoughts anyone?

My System SpecsSystem Spec


 RealTek High Definition Audio randomly muting sound

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