Dell Pro Plus Laptops Have no Audio After Windows Update

Summary: This article provides more information about Dell Pro 13, 14 and 16 Plus laptops not having audio after a Windows Update.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

Affected Platforms:

  • Dell Pro 13 Plus PB13255
  • Dell Pro 14 Plus PB14255
  • Dell Pro 16 Plus PB16255

The audio output issue occurred after updating Windows with AMD Radeon 890M/880M/860M/840M/760M/740M Graphics Driver v.32.0.13046.7002 and AMD Audio Coprocessor v.7.0.0.46.

Cause

The AMD Audio CoProcessor driver is supposed to be updated to version 7.0.0.49, but due to a Windows Update failure, it only updates to 7.0.0.46.

Resolution

To resolve the issue, update the AMD Radeon 890M/880M/860M/840M/760M/740M Graphics Driver to 32.0.13046.7002 which automatically installs the AMD Audio Coprocessor v.7.0.0.49.

Affected Products

Dell Pro 13 Plus PB13255, Dell Pro 14 Plus PB14255, Dell Pro 16 Plus PB16255
Article Properties
Article Number: 000349038
Article Type: Solution
Last Modified: 23 May 2026
Version:  4
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