Article ID : S500009566 / Last Modified : 11/04/2018

What to do if no sound is produced from the VAIO computer after upgrading to Windows Vista SP1?

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No sound is produced from the VAIO computer after upgrading to Windows Vista SP1. Symptom persists even after the audio driver on the computer is re-installed.


Please install the upgrade programs to resolve this symptom.
For CR3 Series
BIOS Upgrade Program Version R2100Q0

For CR2 Series
BIOS Upgrade Program Version R1120Q0