'Error code 0x800706cc: The endpoint is a duplicate'. Also a red x over the sound icon. AVG 2014

http://wintegrity.blogspot.co.uk/2014/11/how-to-fix-sound-not-working-in-windows.html

I am done with AVG!!!  When you guys remove valid files and then say it's unlikely avg removed files without asking.  Even if you do ask how is someone suppose to know whether or not to say yes.  I relied on your program because I'm not a computer expert and I thought you guys were.  And now I have to waste all this time fixing this issue.

Stephanie, If you believe this to be a false detection have a look @ this article (https://support.avg.com/SupportArticleView?urlname=How-to-report-a-false-incorrect-detection). Also have a look @ this article (https://support.avg.com/SupportArticleView?urlname=How-to-exclude-file-folder-or-website-from-AVG-scanningCAQ).
AVG Guru

hello from chile and I had the same problem I had to uninstall the antivirus (avg) and restart my notebook and I back the audio, and install an antivirus and everything goes better

How do I reinstall sound drivers please? I have had major problems since having AVG put on my computer. AVG have (finally) remotely sorted everything out but say the sound must be due to something else. I restored the quarantined bit in the AVG vault for the approximate date that it all went wrong but not sure where to What can I do now?

NOT COOL AVG!   Wasted a day of my life figuring out how to fix this.  I expect better from AVG.  I had the same problem as Stephanie.

sorry it also can be any other computer brand it donent have to be lenovo

So since a few months ago I keep getting a sound error: 'Error code 0x800706cc: The endpoint is a duplicate'. Also a red x over the sound icon on the icon tray. I now find out that AVG 2014 Somehow it identified Windows audio files as a virus and settle them on quarantine. The fix is said to be to just restore the audio files from the vault, but what if they are not in the vault anymore? How can I get them back? Big s***w up by AVG

Stephanie, If you believe this to be a false detection have a look @ this article (https://support.avg.com/SupportArticleView?urlname=How-to-report-a-false-incorrect-detection). Also have a look @ this article (https://support.avg.com/SupportArticleView?urlname=How-to-exclude-file-folder-or-website-from-AVG-scanningCAQ).
AVG Guru
Hi Tanya,
I recommend you download latest version from manufacturer Support site.
Thanks
hello from chile and I had the same problem I had to uninstall the antivirus (avg) and restart my notebook and I back the audio, and install an antivirus and everything goes better
How do I reinstall sound drivers please? I have had major problems since having AVG put on my computer. AVG have (finally) remotely sorted everything out but say the sound must be due to something else. I restored the quarantined bit in the AVG vault for the approximate date that it all went wrong but not sure where to What can I do now? 
Hi im here to help just install a diffrent sound software 
realtek it works 
this works on windows 7/8/8.1 32 and 64 bit
here
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/gia136ww.exe
install the software and restart and the audio works
 
sorry it also can be any other computer brand it donent have to be lenovo
I am done with AVG!!!!!!  When you guys remove valid files and then say it's unlikely avg removed files without asking.  Even if you do ask how is someone suppose to know whether or not to say yes.  I relied on your program because I'm not a computer expert and I thought you guys were.  And now I have to waste all this time fixing this issue.  

NOT COOL AVG!   Wasted a day of my life figuring out how to fix this.  I expect better from AVG.  I had the same problem as Stephanie.

If anyone is still having this problem, please see Windows Faults Fixed: HOW TO FIX: Sound not working in Windows 8 - 'Error 0x800706cc: The Endpoint is a duplicate' for a possible fix.

http://wintegrity.blogspot.co.uk/2014/11/how-to-fix-sound-not-working-in-windows.html