Fix Error OxC0000374 on Windows 10

If you try to install the necessary drivers for your Realtek sound card and get the error message “Realtek HD audio driver error, error OxC0000374”, this article will help you. In this article, we will try to identify the possible cause of the failure and provide appropriate solutions you can use to solve the problem.

If the driver installation fails, you will get the following error message:

The Realtek HD audio driver could not be installed!
[Error code: OxC0000374].

Note that the error code may be different, but this is another case of the error. The solutions presented in this article also apply.

There are several scenarios for this problem and several possible causes. However, there are cases where this problem occurs because the sound card is not working. This situation cannot be solved by a software solution and requires replacing the sound card. You do not see errors and unknown device with yellow exclamation mark or question mark in Device Manager. In Windows 10, you cannot install drivers because the hardware device is not working.

Use the Add Legacy Hardware option in Device Manager

This solution applies only if the audio, video and game controllers are lost in the Device Manager.

Follow the instructions in Solution 1 to use the “Add Legacy Hardware” option in the Device Manager.

If the error persists, go to the next solution.

Reinstall the driver

This is a basic solution for almost all types of software problems, since most software errors are caused by incorrect settings.

  • Hold down Windows + I, then click the “Applications” tab.
  • Below, find the Realtek HD Audio driver and click Uninstall.
  • Download the Realtek drivers directly from your laptop manufacturer’s website and install them on your system.
  • Now restart your system and see if the problem is resolved or not.

Update the driver using the device manager

device manager

Sometimes outdated drivers can be the root cause of all your problems. In this case, you can try updating the driver manually from the Device Manager window.

  • Hold down Windows Key + X to open the advanced user menu.
  • Select the Device Manager option from the list.
  • The Device Manager window will open. Here, find the Sound, Video, and Game Controllers tab and open it.
  • On this tab, right-click Realtek High Definition Audio and select “Update Driver Software”.
  • Follow the instructions on the screen, and your computer will automatically check for an update file on the Internet. If it finds it, you will be notified and can install it.
  • If you see an administrator prompt during the process, allow it. After the installation is complete, restart your computer.

Disable Microsoft UAA bus driver

The real problem may actually be caused by the UAA driver. To solve this problem, you need to uninstall the UAA drivers. This is necessary to properly configure the Realtek driver and the UAA bus driver. Finally, you need to perform the following steps line by line:

  • First, uninstall the Realtek HD Audio driver under Install & Uninstall Programs. (If it does not work even after installation.)
  • Press the Windows + X keys to open the advanced user menu.
  • Click on the Device Manager option. A new window will open “Device Manager”.
  • Second, look for the “Sound, video and game controllers” option.
  • Also look for the Microsoft UAA bus driver for high-definition audio. Right-click on it. First, click “Disable” and then “Uninstall”.
  • In Device Manager, double-click “Obsolete audio drivers”. Then click “Properties.”
  • Select the audio device from the list and uninstall it. To continue, reboot the device.
  • Run the executable file to install the Realtek driver.
  • Reboot the device to see the changes.