What is RtkHDAud?

RtkHDAud.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if RtkHDAud.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for RtkHDAud drivers in need of updating

RtkHDAud.sys file information

The process known as Realtek® High Definition Audio Function Driver belongs to software Realtek® High Definition Audio Function Driver (HRTF data Copyright (version 1994 by MIT Media Lab)) by Realtek Semiconductor (

Description: RtkHDAud.sys is not essential for the Windows OS and causes relatively few problems. RtkHDAud.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 2,297,984 bytes (7% of all occurrences), 5,063,168 bytes and 22 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The service has no detailed description. It is not a Windows system file. It is a trustworthy file from Microsoft. RtkHDAud.sys appears to be a compressed file. Therefore the technical security rating is 17% dangerous; however you should also read the user reviews.

Recommended: Identify RtkHDAud.sys related errors

Important: Some malware disguises itself as RtkHDAud.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the RtkHDAud.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

blue screen
Realtek ac 97
I use it and want it on my wife's computer!!
  Tim Haulton  
steuert den Soundmanager
  Werner Uhlig  
i think it not necessary to use. my computer often dump because it used file RtkHDAud.sys
  thanh vn  
Realtek HD audio driver
  dtm   (further information)
It's for the built-in audio on motherboards with Realtek Audio, it crashes some games after a whole however (Warcraft3).
It's the driver for the Realtek High Definition Audio card. It is indeed harmless, but commonly installed incorrectly, causing problems. I'm not sure if your sound will work without it.
free downlaud realtek
Getting blue screen during gameplay about 40% of the time, blue screen reports rtkHDAud.sys is the cause, now ill shop for a new soundcard
  André Flindt  
it is use for generating sound of sound card
  boody the manager of google  
its my pc sound driver
  saeed ajmal  
It is part of the HD Audio Package from Reatek & Asus. Not every Audio version requires it, depending on the Drivers required for your motherboard. Open your setup package, if it is included you need it.

Rating chart

Summary: Average user rating of RtkHDAud.sys: based on 34 votes with 13 user comments. 24 users think RtkHDAud.sys is essential for Windows or an installed application. 3 users think it's probably harmless. 2 users think it's neither essential nor dangerous. 2 users suspect danger. 3 users think RtkHDAud.sys is dangerous and recommend removing it. 3 users don't grade RtkHDAud.sys ("not sure about it").

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Best practices for resolving RtkHDAud issues

A clean and tidy computer is the key requirement for avoiding problems with RtkHDAud. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the RtkHDAud.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

RtkHDAud.sys [all]