Realtek High Definition Audio Driver

Restart required

hi testing

Driver Id : 645PN

Importance : Critical

Version : 6.0.9780.1, A86 Latest version Recommended version Latest and Recommended version

Release Date : 20 Feb 2025

Download Type : Driver

Category : Audio

This package contains the Realtek High Definition audio driver. 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_645PN_WIN64_6.0.9780.1_A86_01.EXE

File size: 250.43 MB

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

MD5: c2d7be38fada84d90251562379a4db40

SHA1: 9dee7be52bdde2b0de487d22b5ea2864e8480366

SHA-256: b8a65e296cf088f6b0f9e3c766fc8e3136ea4a455423b5e9a41e34d4ff71a9c5

Download .EXE

Fixes & Enhancements

- Fixed the issue where the system microphone and speaker do not work after you install the audio driver. This issue occurs on systems with the Windows 11 operating system, version 24H2.
- Fixed the issue where there is no audio during a Microsoft Teams call.
- Fixed the issue where a Windows error message is displayed when you update the operating system.

Important Information

- This audio driver requires the MyDell 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

Inspiron 15 3520

Vostro 3420

Vostro 3520

Supported Operating Systems

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.