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  • Registered: ‎10-03-2014
  • Location: Taiwan
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Dolby Home Theater v4 doesn't work on Windows 8.1

2014-10-03, 11:55 AM

Hi there, my loptop is thinkpad E420s, and Dolby Home Theater v4 works normally on windows7, but it doesn't work after I upgrade it to windows 8.1. I try every methods online about how to fix this problem on windows 8, but it doesn't work. Does anyone notice this problem and fix it ? I try to upgrade the driver of Conexant 20671 to a newer verson, but I can't. The Latest verson driver on my computer is, and the Dolby software verson is 7.2.8000.17.


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  • Registered: ‎08-15-2013
  • Location: Bulgaria
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Re: Dolby Home Theater v4 doesn't work on Windows 8.1

2014-10-06, 15:18 PM

I own E540.
My conexant driver is which is alot newer than yours. Try downloading the driver for the Thinkpad E540. It's working fine on windows 8.1, so does the dolby v4 . ;)
You should have no problems installing it.
As i can see lenovo is updating now only the drivers for the Ex40 and Ex30 series...


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Re: Dolby Home Theater v4 doesn't work on Windows 8.1

2014-10-06, 15:49 PM
I agree with vyrgozunqk, install the audio driver from the ThinkPad E540. Try and see if those work.

Kind regards,

Jonas Hendrickx

Lenovo Insider, Windows Insider MVP


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