Microsoft KB Archive/929251

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A High Definition (HD) audio device no longer plays audio files after a BIOS update on a Windows Vista-based computer

Article ID: 929251

Article Last Modified on 3/15/2007


  • Windows Vista Ultimate
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Ultimate 64-bit edition
  • Windows Vista Enterprise 64-bit edition
  • Windows Vista Business 64-bit edition
  • Windows Vista Home Premium 64-bit edition
  • Windows Vista Home Basic 64-bit edition
  • Windows Vista Starter


A High Definition (HD) audio device may not play audio files after you update the BIOS on a Windows Vista-based computer.


This problem occurs because the BIOS update changes the pin configuration of the HD audio device.


To resolve this problem, you must reinstall the drivers for the HD audio device, and then restart the computer.

Keywords: kbexpertisebeginner kbtshoot kbprb KB929251