Fix: HDAUDBUS.SYS issues and errors in Windows 10

Ivan Jenic
by Ivan Jenic
Troubleshooting Expert
Passionate about all elements related to Windows and combined with his innate curiosity, Ivan has delved deep into understanding this operating system, with a specialization in drivers and driver troubleshooting. When he's not tackling... Read more
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  • Did you run into a hdaudbus.sys missing/ corrupted/ not working error on Windows 10?
  • Getting a hdaudbus.sys with BSOD is very common, so better be prepared to know how to fix it.
  • Making sure that your OS is in shipshape in terms of updates and drivers is a good hdaudbus.sys latency fix.
  • There's also an efficient solution to sort out hdaudbus.sys issues in Command Prompt.
HDAUDBUS.SYS issues and errors in Windows 10
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You might have encountered many error messages or perhaps even the blue screen of death (BSOD) because you are missing the Microsoft hdaudsbus.sys file from your Windows device.

Related error messages that include this file and that you might get are:

  • The program can’t start because hdaudbus.sys is missing from your computer. Try reinstalling the program to fix this problem
  • hdaudbus.sys file is missing
  • hdaudbus.sys is corruped
  • hdaudbus.sys is not working

In the tutorial below, you will find out why the high definition audio bus driver reacts like that. And no matter the error, this article will show you how you can fix it in a few steps.

Don’t forget to run a few virus and malware scans on your Windows device to make sure your system is not affected by these threats.


How to fix Microsoft hdaudbus.sys. on Windows 10?

  1. Run a third-party troubleshooter
  2. Check for updates
  3. Download the latest audio/ display drivers
  4. Scan your system for malware
  5. Troubleshoot regsvr32 hdaudbus.sys in Command Prompt
  6. Clean your Registry
  7. Launch System Restore
  8. Unplug all peripherals
  9. Check for overheating issues
  10. Reinstall Windows 10

1. Run a third-party troubleshooter

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2. Check for updates

  1. In the search bar, type settings and double click on the first result.
  2. In the Settings window, select Update & Security.
  3. Navigate to Update and click on the Check now button.check for updates
  4. The computer should start checking for any available updates for your device.
  5. Select Update history after the updates are found.
  6. Install any available updates you see in the next window if they are not already installed.
    Note: You might be prompted by a user account control message when clicking to install updates. Select Yes button to allow the update installation.
  7. After the updates have finished installing, reboot your device.
  8. Check to see if you’re still getting the hdaudbus.sys error.

3. Download the latest audio/ display drivers

  1. Use DriverFix to automatically detect all the outdated drivers on your PC and download new ones.
  2. Or, you can go to your audio/display driver manufacturer’s website and download the latest driver versions for your Windows device.
  3. If you do not find a compatible driver, in Device Manager, right-click on the driver file.
  4. From the menu that shows up, select Properties.
  5. Select the Compatibility tab.
  6. Check the box next to Run this program in Compatibility mode.
  7. From the drop-down menu, select the operating system with which the driver is compatible.Run this program in Compatibility mode
  8. Follow the on-screen instructions to finish the installation of the driver.
    Note: If you are prompt by a user account control message, select Yes to allow the installation.
  9. After you installed the driver, you need to reboot your Windows device.

4. Scan your system for malware

antivirus scan to fix HDAUDBUS.SYS issues

Run a full virus scan using your antivirus to check for potential virus or malware infections.

After the check is finished, reboot your device and check again to see if you get the hdaudbus.sys error message.

If you haven’t installed an antivirus on your machine, this list of the best antivirus tools for Windows 10 may help you decide which one to install.


Combine an antivirus with a VPN for the ultimate protection. Check out these tools!


5. Troubleshoot regsvr32 hdaudbus.sys in Command Prompt

  1. In the search box, type cmd.
  2. Select the Command Prompt icon and Run as Administrator.
  3. If you are prompt by a UAC window, select the Yes button.
  4. In the command prompt window, enter the following command and press Enter: regsvr32 hdaudbus.sys
  5. Reboot your device after the process finishes.
  6. Check to see if the error message persists.

5. Clean your Registry

  1. Open Command Prompt as Administrator again.
  2. Enter the sfc /scannow and hit EnterSFC scan
  3. Wait until SFC scans your system and fixes problematic files
  4. Restart your computer.

If you’re still getting this error code, maybe certain Registry keys are missing or have become corrupted.

Fortunately, you can quickly fix this problem with the System File Checker. It will correct any issues found in the Registry.

Also, installing and running a dedicated Registry cleaner can also help. If you haven’t installed one on your machine yet, check out this list with the best Registry cleaners for Windows 10.


6. Launch System Restore

  1. Be sure to backup your important files and folder before you do this step.
  2. Open Control Panel.
  3. There, navigate to the search box and type recovery.open system restore
  4. Select the Recovery icon and go to Open system restore.system restore windows 10
  5. Follow the instructions on the screen to finish the system restore and bring your device back to a point where you did not have this issue.

7. Unplug all peripherals

easy fix for HDAUDBUS.SYS issues

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Some users confirmed that unplugging all the peripherals connected to their computer helped them fix this error.

So, simply disconnect absolutely all the peripherals (especially your microphone and other player devices) and restart your computer.

Wait for a couple of minutes and then start plugging your peripherals back in one by one.


8. Check for overheating issues

check for overheating issues

If you’re using Windows 10 on a laptop, you may want to check for overheating issues as well.

As a matter of fact, overheating is one of the most frequent root-causes for BSoD errors.

If your computer is abnormally hot, shut it down and disconnect the power cable. Wait for about 10 minutes and then boot it up to see if the issue persists.

Additionally, you may want to install one of these cooling software solutions on your laptop or buy a cooler.


9. Reinstall Windows 10

If the steps above did not work for you then you will need to do a full system reinstall of your Windows 10 OS.

For more information on how to clean install Windows 10, check out the guides listed below:

There you go, if you carefully follow the steps above you will manage to solve your hduadbus.sys error message in the shortest time possible.

Please write us below in the comments section of the page if you have any additional solutions to this topic and we will surely look over it.

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