in ThinkPad: P and W Series Mobile Workstations https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile-Workstations/W520-with-W10-unable-to-start-Dolby-audio-driver/m-p/3388133 ThinkPad: P and W Series Mobile Workstations topics Sat, 06 Aug 2016 18:43:24 +0000 tp07_en <![CDATA[ ]]> https://forums.lenovo.com/topic/findpost/1306/3388133/3388133 I am getting the following error message, when I start W10 (update from W7):

Unable to start the Dolby audio driver. Please restart the computer or reinstall the driver if the problem persists.

 

There are no issues indicated in the system and both W10 and Thinkpad apps are upda ]]> Sat, 06 Aug 2016 18:43:24 +0000 https://forums.lenovo.com/topic/findpost/1306/3388133/3388133 radekpletka <![CDATA[ Re: W520 with W10 - unable to start Dolby audio driver ]]> https://forums.lenovo.com/topic/findpost/1306/3388133/3388145 Sat, 06 Aug 2016 19:16:43 +0000 https://forums.lenovo.com/topic/findpost/1306/3388133/3388145 Parth5975 <![CDATA[ Re: W520 with W10 - unable to start Dolby audio driver ]]> https://forums.lenovo.com/topic/findpost/1306/3388133/3388357 You must reboot into the mode  where driver signature checking is not enforced. You then must uninstall the existing Dolby driver, and then install it again. Do not merely repair it, because that will not work.

 

You can reboot back into the normal Windows startup after following thes ]]> Sun, 07 Aug 2016 08:00:28 +0000 https://forums.lenovo.com/topic/findpost/1306/3388133/3388357 damonlynch <![CDATA[ Re: W520 with W10 - unable to start Dolby audio driver ]]> https://forums.lenovo.com/topic/findpost/1306/3388133/3388881 Thank you, I did some research and I found similar info.

I got stuck at trying to find the files to download the Dolby drivers, as one post, which linked to it, is not working anymore, and the procedures for rebooting into the no checking signature mode are not very clear. I found some Dolb ]]> Mon, 08 Aug 2016 07:43:57 +0000 https://forums.lenovo.com/topic/findpost/1306/3388133/3388881 radekpletka <![CDATA[ Re: W520 with W10 - unable to start Dolby audio driver ]]> https://forums.lenovo.com/topic/findpost/1306/3388133/3388883 No hint of Dolby drivers, just the warning message that it was not loaded as I described above.

I uninstalled them when I learned more about this, but when I reinstalled them, the error is repeated, because I did not figured out yet, how to reinstal them without allowing the system to check ]]> Mon, 08 Aug 2016 07:47:57 +0000 https://forums.lenovo.com/topic/findpost/1306/3388133/3388883 radekpletka <![CDATA[ Re: W520 with W10 - unable to start Dolby audio driver ]]> https://forums.lenovo.com/topic/findpost/1306/3388133/3388885 I'm in Linux at the moment but rebooting Windows 10 into unsigned drivers mode is very easy. From memory you should go into the rescue and recovery section of the Windows 10 settings, and take it from there.

 

As you have found, if you try to install it with driver signature checking ]]> Mon, 08 Aug 2016 07:50:34 +0000 https://forums.lenovo.com/topic/findpost/1306/3388133/3388885 damonlynch