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g8rcubFlag for United States of America asked on

Lenovo ThinkPad E15 laptop - no audio output device installed - no sound

I have a new Lenovo ThinkPad E15 laptop here and the sound will not work.  It worked when I bought the laptop but after I changed the product key (to update it from Win10 Pro to Win 10 Enterprise) then ran all windows updates and let Lenovo Vantage System update install any critical and recommended updates, there is no sound.  The error says Windows cannot verify digital signature for the drivers.

I went to Lenovo's site and installed the newest Synaptics audio drivers (which seemed to install fine but the new driver date is not reflected) I still have no sound... there is just a red X on the speaker icon.  

See attached images for error messages, any ideas on what else I can try?  This is happening on multiple E15's that we have here.

Installation* LenovoWindows 10* AudioLaptops Notebooks

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8/22/2022 - Mon

Have you tried using older version of the installed driver? I have had a lot of problems with this driver however on a HP Mini station. To get to the option of using previous driver you will need first try to do the update of the driver via device manager and then when it says all is done you can go again to the driver settings and look for active roll back driver.



noxcho, I will try that tomorrow when I have the laptop in front of me.  For some reason I don't think I saw that as an option, I believe Rollback was greyed out.  Is there another way to rollback or a place to find the previous drivers to try?

nobus, I did try to install that driver but it will not work (see my image above).  It says it installs fine but does not fix the issue and then I see the error about not being able to verify the digital signature.
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That worked, nobus, thank you both for the help on this!

tx for the feedback