Dv6, Sound Icon has an X, no audio devices installed

I have a dv6 running on windows 7 and the sound has not been working for me the past couple of days (since Sunday actually). The sound icon is displaying a red X, and its telling me no speakers or headphones are plugged in. I have tried to do everything it seems like. I went to the volume control options and the “all devices currently playing sound” and “the default communication device” are both checked. I went to “manage audio devices” and it says no audio devices are installed. I went to Administrative tools, clicked on services and “audio service” is nowhere to be found. So I tried reinstall the audio driver, to update the audio driver, BIOS update before installing an audio driver and still nothing. Matter of fact, every time I tried to download another audio driver, I received a message saying “_ExitError: Error=Error in installation, Call to GetClassDevs” which I have no clue what that means. I tried also to go to “device manager” to see if something that’s supposed to be checked off, which might not have been checked off, but there was absolutely nothing being displayed in the “device manager.”
Basically, can someone please help me out? I’d really appreciate it. I’ve read lots of other posts and they’re not helping me so I’m getting a little desperate.

Wow, sounds like you've done some great troubleshooting with all the things you've tried.
Perhaps something happened Sunday to mess up your sound.
Have you thought of a system restore? From the document, Using Microsoft System Restore:
System Restore is a software program available in all versions of Windows 7. System Restore automatically creates restore points, a memory of the system files and settings on the computer at a particular point in time. You can also create a restore point yourself. Then, when you use System Restore to restore your computer to a point in time before an issue began, System Restore returns your computer to the files and settings from the restore point. Your personal files and documents are not affected.
It's just a thought, but it might help.
GeorgeFN
I work on behalf of HP.

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**Click on “Kudos” Star if you think this reply helped** Or Mark it as "Solved" if issue got fixed.

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Hello BFede93, welcome to the HP Forums.
I see that you're getting a message that no audio device is found. I will try to assist you with this.
I would recommend starting with the following document:
Resolving No Audio Device is Installed Error in Windows 7.
Please let me know how this goes for you.
Thank you for posting on the HP Forums.
I worked on behalf of HP.

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This question was solved.
View Solution.

Hi,
My suggetion: Totally uninstall it, reboot the machine and install it again. You can uninstall it from
   Control panel > Device Manager
   It should be under Sound ...
   Right click it & Uninstall
Regards,
BH
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Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

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ii) Run HP Support Assitant and check if any HP updates are pending..like BIOS Update..
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If you have HP Support Assistant installed on the computer(The Blue Question Mark) then open it ==> Complete all pending Updates & Tuneups==> Restart and Check. It may solve your problem
Although I am an HP employee, I am speaking for myself and not for HP.
**Click on “Kudos” Star if you think this reply helped** Or Mark it as "Solved" if issue got fixed.

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HI,
EHanrehan, you have a loptop DV6700 hece please post in the Laptop section.
Hi,
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Although I am an HP Employee, I am speaking for myself and not for HP.
Make it easier for other people to find solutions, by marking my answer “Accept as Solution” if it solves your problem.

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the card works fine in linuxMessage Edited by wuhlei on 0-27-200709:36 AM

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