Cannot Adjust Volume Using Keyboard Hotkey or Windows Volume Icon on Alienware m16 R2

Summary: Learn how to troubleshoot when unable to adjust the volume on an Alienware m16 R2.

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Symptoms

The sound volume on a computer cannot be adjusted using the keyboard hotkey (volume up and down) or the volume icon on the taskbar in Windows. The issue occurs after installing the Realtek High Definition Audio Driver version 6.0.9802.1, A05.

Affected Platform:

  • Alienware m16 R2

Cause

The Realtek High Definition Audio Driver version 6.0.9802.1, A05 is the cause.

Resolution

Updating to Realtek High Definition Audio Driver version 6.0.9835.1, A06 or later on the computer resolves the issue. To download and install the driver, refer to How to Download and Install Dell Drivers and Firmware.

Affected Products

Alienware m16 R2
Article Properties
Article Number: 000320288
Article Type: Solution
Last Modified: 15 Sep 2025
Version:  3
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