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Dolby Audio driver cannot start after upgrading to Windows 8.1


After a recent  update to Windows 8.1, I restarted my system and I get this message:


Dolby error.JPG


I can't find any reference to Dolby Theater or Audio in any app or Device management.



The following proceedure has been reported to be successful by many members in the Lenovo community.  

It is possible that Windows is installing an alternate driver as part of the 8.1 update process.  Restoring the original Lenovo driver may resolve the issue.


1. Unistall the Conexant Audio Driver (from device manager).

  •     Open Device Manager 
  •     Uninstall the Audio Device Under Audio inputs and outputs
  •     Then proceed to Control Panel / Programs / Uninstall a Program
  •     Uninstall all Dolby Related programs
  •     Restart if Prompted


2. Reinstall it from the drivers partition (d:\drivers\audio).



3. Install the Dolby Home Theater software (d:\drivers\audio\DolbyGUI)



 Depending upon individual system configurations that can vary by model, the drivers may be stored on C, D, E or other drive letter.  View another related discussion on this issue here - the solutions are all variations of uninstalling the drivers Windows installed and then either locating othe original drivers on one of the drive partitions, and reinstalling from there or downloading and installing the drivers from the lenovo support site.

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mansoum On 2014-04-02, 22:34 PM



IdeaPad U330 Touch


With reference to the problems relating to Windows 8.1 upgrade and Dolby Home Theater application. I too have the same issue, all was working fine untill the upgrade and now Dolby is not responsive. My problem here is I can't find any copy of Dolby on the D: drive, I tried searching every where but to no avail.  I am stuck and would apperciate any help on this matter.


When I purchased this notebook I remembered it did not have any software in partition d:, is there any where were I can download all these missing apps and drivers?  


Thanks and regards



jocablues On 2014-07-02, 4:19 AM

the auto conexante really works ..in 10 minutes im back to the movies ,,,grat


VR_comp On 2014-07-26, 0:31 AM

None of this works for me - I do have Windows 7, but still having the same prob. My main issue is that in Device Manager, i do not have Audio Device Under Audio inputs and outputs; i have nothing that even has Audio in the name - the closest is the Speakers, Games, etc. Also, when i go to drivers, i do not have the Audio folder. What has gone wrong here?!?!? PLEASE HELP ASAP!!! Thank you!


PS - my Windows media player doesn't work either - if that helps - but WMP will play midi files - wierd...

Mark_Lenovo On 2014-08-13, 15:35 PM



Comments on this article span different OS versions.  This article is specifically about errors that occur after upgrading to Win 8.1 from Windows 8.


The drivers on the system may be downlevel, so restoring from D: or other locations may work in many cases, but if not, we recommend getting the latest drivers from the Lenovo support site for your particular OS as they should be more up to date than what may have shipped with your systems.


Please visit support.lenovo.com

alexarc On 2014-09-20, 15:42 PM

this is not working on my G580 notebook with windows 8.1.. pls reply to solve this issue

egenfer On 2014-11-10, 9:16 AM

На самом деле, все гораздо проще: перед установкой обновления 8.1 , заходим в PROGRAM FILES (x86) и копируем на флэшку папку DOLBY ADVANCED AUDIO V2. Затем обновляемся до 8.1. После обновления, открываем ПАНЕЛЬ УПРАВЛЕНИЯ и удаляем CONEXANT HD AUDIO (драйвер При этом появляется "Ошибка. Программа уже была удалена. Удалить ярлык?" Жмете "ДА" и удаляете. Больше ничего не удаляйте! Заходим на сайт "LENOVO" и скачивем драйвер с вышеуказанным номером. Устанавливаем. Если не работает, то заменяем папку DOLBY c флэшки (лучше на всякий случай сделать это перед установкой драйвера). Вот и все. http://support.lenovo.com/ru/ru/products/laptops-and-netbooks/lenovo-g-series-laptops/lenovo-g780-notebook/downloads/DS031339                         (Ccылка для ленивых, таких как я).

mattee1283 On 2014-12-06, 22:20 PM

I have a Lenovo G580 and had the same issues once I upgraded to Windows 8.1. The suggestions in this article worked for me until I got to the part where I was supposed to install the Dolby Home Theater, and then an error message popped up, not allowing me to install. What I ended up doing was downloading an updated Lenovo audio driver for Windows 8.1 at http://support.lenovo.com/us/en/downloads/ds037354. I installed that, and everything seems to be fine. I'm pretty sure that would be a one-step solution. It installed Dolby Advanced Audio v2, which when I viewed what it is supposed to do compared to the Dolby Home Theater, they seemed to do pretty much the same thing. Dolby Home Theater still won't install as I don't think it has an updated version but I don't think it is necessary with the new Lenovo driver update and Dolby Advanced Audio v2.

Information on the Dolby Home Theater: http://www.dolby.com/us/en/technologies/dolby-home-theater-v4.html

Compared to info on Dolby Advanced Audio v2: http://www.dolby.com/us/en/technologies/dolby-advanced-audio-v2.html

ijneb On 2014-12-29, 2:09 AM

Hello everyone,


I fought installing windows 8.1 for the longest time and recently it gave me no option, so i am late comming to the windows 8.1 audio issues...


i have searched several forums and some said to uninstall the drivers but now when i go to install from lenovo driver site it gives me this error...


now one would think that the audio hardware has been removed but it was working prior to the attempt to address the dollby audio issue that so many happned and now it has developed into this new issue. if anyone can help i would appreciate it because now there is no audio at all comming from the computer

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