TITLE: Realtek High-Definition (HD) Audio Driver
VERSION: 24.9929.114.37 REV: D PASS: 5
DESCRIPTION:
This package provides the Realtek High-Definition Audio Driver. Audio drivers
allow the operating system to communicate with audio devices, such as speakers,
microphones, and headphones.
PURPOSE: Routine
SOFTPAQ NUMBER: sp173650
SOFTPAQ FILE NAME: sp173650.exe
SOFTPAQ MD5: A9D4E9103F9C24EA8A13F7ED5F35BE83
SUPERSEDES: sp172195
EFFECTIVE DATE: June 30, 2026
CATEGORY: Driver-Audio
SSM SUPPORTED: Yes

PRODUCT TYPE(S):
Notebooks
HARDWARE PRODUCT MODEL(S):
HP EliteBook 645 14 inch G11 Notebook PC
HP ProBook 445 14 inch G11 Notebook PC

OPERATING SYSTEM(S):
Microsoft Windows 10 version 22H2 (64-bit)
Microsoft Windows 11 IoT Enterprise LTSC 24H2 (64-bit)
Microsoft Windows 11 version 21H2 (64-bit)
Microsoft Windows 11 version 22H2 (64-bit)
Microsoft Windows 11 version 23H2 (64-bit)
Microsoft Windows 11 version 24H2 (64-bit)
Microsoft Windows 11 version 25H2 (64-bit)
Windows 10 IoT Enterprise 2021 LTSC 64-bit

LANGUAGE(S): Global

WINDOWS UPDATE DRIVER-BIOS NAME LIST:
audio_acpbus_6.0.2.114 (automation)

DEVICES SUPPORTED:
PCI\VEN_8086&DEV_54C8="Intel(R) Smart Sound Technology BUS"
PCI\VEN_8086&DEV_51CA="Intel(R) Smart Sound Technology BUS"
PCI\VEN_8086&DEV_51C8="Intel(R) Smart Sound Technology BUS"
PCI\VEN_1022&DEV_15E2="AMD Audio CoProcessor"
PCI\VEN_8086&DEV_7A50="Intel(R) Smart Sound Technology BUS"
PCI\VEN_8086&DEV_7E28="Intel®? Smart Sound Technology BUS"
PCI\VEN_8086&DEV_7F50="Intel®? Smart Sound Technology BUS"
INTELAUDIO\FUNC_01&VEN_10EC&DEV_0245="Realtek(R) Audio"
HDAUDIO\FUNC_01&VEN_10EC&DEV_0245="Realtek(R) Audio"
INTELAUDIO\FUNC_01&VEN_10EC&DEV_0236="Realtek(R) Audio"
HDAUDIO\FUNC_01&VEN_10EC&DEV_0236="Realtek(R) Audio"

ENHANCEMENTS:
- Includes the following drivers:
AMD Audio CoProcessor, version 6.0.2.114
Realtek Audio Driver, version 6.0.9929.1
Cirrus Logic Audio Amplifier Driver, version 17.54.59.438
Fortemedia Audio Effects Component Driver, version 12.1.6003.6124
PREREQUISITES: NONE
HOW TO USE:
1. Download the file by clicking the Download or Obtain Software button and
saving the file to a folder on your hard drive (make a note of the folder where
the downloaded file is saved).

2. Double-click the downloaded file and follow the on-screen instructions.

3. After the driver installation is complete, please restart the system.

Copyright (c) 2026 HP Development Company, L.P.