Realtek High Definition Audio Driver

Restart required

Driver Id : D1K66

Importance : Critical

Version : 6.0.9780.1, A81 Latest version Recommended version Latest and Recommended version

Release Date : 21 Feb 2025

Download Type : Driver

Category : Audio

This package contains the driver for the Realtek High Definition audio codec. Audio driver is the software that helps your operating system to communicate with audio devices such as internal sound cards, speakers, headsets, and microphones.

Download Files

File Format: Dell Update Packages in native Microsoft Windows 64-bit format do not require that Microsoft WOW64 be installed on the Microsoft Windows Server.

File Name: Realtek-High-Definition-Audio-Driver_D1K66_WIN64_6.0.9780.1_A81_01.EXE

File size: 100.25 MB

To ensure the integrity of your download, please verify the checksum value.

MD5: ff2a8b03dad764151cabfc9820e57252

SHA1: 2641943211a859b5d6d07fc6a850688b7b324efb

SHA-256: e8d1ad38421ac066ffa8bd69ffa7a6e453a97aa506a080aea13ddfbe007220cd

Download .EXE

Fixes & Enhancements

- Fixed the issue where a Windows error message is displayed when you install the audio driver multiple times. This issue occurs when subfolders are created with an abnormal naming convention in the Waves folder.
- Fixed the issue where there is no audio during a Microsoft Teams call.
- Fixed the issue where there is no sound on the system after you install the audio driver through the exe installation.

Important Information

- This audio driver requires the Waves MaxxAudio Pro or Dell Optimizer application to be installed to have full functionality.
Select the This Device filter to obtain the correct driver on the Drivers and Downloads page. If you are not on the Drivers and Downloads page, identify your product.
- Audio drivers and applications take no more than 4 minutes to be installed on your system. You can install the updates in the background while using the system.

Compatible Systems

OptiPlex 5490 All-In-One

OptiPlex 7490 All-In-One

Precision 3650 Tower

Precision 3650 XE Tower

Supported Operating Systems

Windows 10 IoT Enterprise LTSC 2021

Windows 10 CMIT Government Edition

Windows 11 S-Mode

Windows 11

Windows 10, 64-bit

Installation instructions

Dell Update Package Instructions

Note: Your system requires a restart after installing the driver. The restart can be deferred but must be completed to ensure that the update is installed.

Download
1. Click Download File.
2. When the File Download window is displayed, click Save to save the file to your hard drive.

Installation
1. Browse to the location where you downloaded the file and double-click the new file.
2. Read the information in the dialog window.
3. Download and install any prerequisites that are identified in the dialog window before proceeding.
4. Click the Install button.
5. Follow the remaining prompts to perform the update.