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How to Fix CxUIUSvc Service High CPU and RAM Usage (5 Ways)

While Windows 10 is a very stable operating system, Windows 11 is still new and needs a lot of improvements. Most drivers are still not compatible with the latest Windows 11.

Recently, many Windows 10 and Windows 11 users have been experiencing issues due to the Conexant SmartAudio II driver. Windows users have reported that the CxUIUSvc service is causing high CPU and RAM usage on Windows 10.

If your PC has the Conexant card and you are facing a problem due to the Conexant SmartAudio II driver, you may find this guide very helpful. This guide will share some basic methods to solve CxUIUSvc Service High CPU usage.

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What is the CxUIUSvc service?

Before understanding the CxUIUSvc service, you must first understand the Conexant. In 2015, laptops and a few computers shipped with Conexant audio chips.

For the proper functioning of the audio chipset, the Conexant SmartAudio II driver had been used. However, Realtek’s entry into the industry changed everything; the audio driver supported most of the audio chipset.

So if you see the CxUIUSvc service in the Task Manager, it is part of the Conexant SmartAudio driver. It has to do with your device’s audio chipset and it’s something you shouldn’t disable.

Fix CxUIUSvc Service High CPU and RAM Usage

Now you know what CxUIUSvc service you may be looking for ways to fix the high CPU or RAM usage issue. The CxUIUSvc service should consume little of the system resources, but if it does, you should follow the methods below.

1. Restart your computer

Restart your computer

Both Windows 10 and Windows 11 automatically look for device driver updates and install them in the background. When the system tries to update your audio drivers, it increases RAM and CPU usage.

So chances are that your device has recently received an update of the Conexant SmartAudio driver and is stuck in the installation part. You can easily solve such problems by restarting your computer.

After the reboot, open the Task Manager again and check if the CxUIUSvc service is still increasing the high CPU and RAM usage.

2. Update your audio drivers

Update your audio drivers

Many laptop users have claimed to solve the high CPU usage of the CxUIUSvc service by updating their audio drivers to the latest version.

Updating audio drivers on the Windows operating system is easy; open Device Manager, expand the Audio section and update your installed audio drivers.

Alternatively you can use third party driver updaters to update your audio drivers. There are many free third-party audio drivers available on the internet that do their job quite well. You can use such programs to update all your outdated device drivers.

3. Roll back audio drivers

If no update is available for your audio drivers, try reverting them to their previous version. This should fix the CxUIUSvc service high CPU usage issue. Here’s what to do.

Roll back audio drivers

  • Open Device administrator on your computer.
  • Fold the Audio input and outputs.
  • Right click on your speaker driver and select ‘Properties‘.
  • Then switch to the Driver tab and select ‘Roll back driver

That is it! This is how to roll back audio drivers to fix high RAM usage of CxUIUSvc service on Windows 10/11.

4. Manually install the Conexant SmartAudio drivers

Conexant SmartAudio HD or Conexant Audio drivers are hard to find, but you can download them from the website of your laptop manufacturer.

For example, if you are using a Lenovo laptop, go to Lenovo’s official website and search for Conexant Audio Drivers. You need to download the driver that is most compatible with your laptop model.

Once downloaded, uninstall your existing audio driver through Device Manager and install the driver you downloaded. After installing the driver manually, restart your laptop to solve the problem.

5. Disable the Cxuiusvc service

If the Cxuiusvc service still increases CPU and RAM usage and freezes your computer, the ultimate way to solve this problem is to disable the Cxuiusvc service. However, disabling the Cxuiusvc service may hinder the performance of your audio devices.

Disable the Cxuiusvc service

  • First, open Windows Search and type ‘Services‘.
  • Open the Service app and find Cxuiusvc service.
  • Right click on Cxuiusvc Service and select Properties.
  • Select ‘Startup type’Handicapped‘.

When you are done, click Apply and then Ok.

That is it! This is how to fix the high RAM usage of Cxuiusvc Service on Windows.

So, this guide is all about how to fix high CPU on Cxuiusvc service in Windows 10/11. If you need more help fixing Cxuiusvc Service’s high RAM/CPU usage, let us know in the comments. If the article helped you, please share it with your friends as well.

Amir Hussain

Amir Hussain is the founder of Freemium World, a geek by nature and a professional Blog writer . I love to write about new technology trends, social media, hacking, blogging and much more.

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