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

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

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In this guide, we will discuss ways to fix the high CPU and RAM usage caused by the CxUIUSvc service. While Windows 10 is known to be stable, the latest version of the operating system, Windows 11, still needs improvements, and many drivers may not be compatible with it. Unfortunately, users of both operating systems have reported facing issues caused by the Conexant SmartAudio II driver. Specifically, the CxUIUSvc service has been causing high CPU and RAM usage on Windows 10. This guide aims to provide some basic methods to resolve this problem, which may be particularly helpful if your PC has the Conexant card.

What is CxUIUSvc Service?

CxUIUSvc Service is a component of the Conexant SmartAudio II driver which is responsible for managing the user interface of the Conexant audio driver. It is a Windows service that runs in the background and can consume a significant amount of CPU and RAM resources. This service is often responsible for causing high CPU and RAM usage on Windows 10 and Windows 11 systems.

Fix CxUIUSvc service High CPU and RAM Usage

Now that you know what CxUIUSvc service is, you may be looking for ways to resolve the high CPU or RAM usage problem. The CxUIUSvc service should consume little of the system’s resources, but if it’s, you should follow the methods below.

1. Restart your computer

Restart your computer

Both Windows 10 and Windows 11 automatically scan for device drivers updates and installs them in the background. When the system tries to update your audio drivers, it will raise the RAM and CPU usage.

So, chances are that your device recently received a Conexant SmartAudio driver update, and it’s stuck in the installation part. You can easily fix such problems by restarting your computer.

After the restart, open the task manager again and check whether the CxUIUSvc service is still raising the high CPU and RAM usage.

2. Update Your Audio Drivers

Update Your Audio Drivers

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

Updating Audio drivers on the Windows operating system is easy; open the 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 web that does their job pretty well. You can use such programs to update all your outdated device drivers.

3. Rollback Audio Drivers

If there’s no update available for your audio drivers, try rolling back them to their previous version. This should fix the CxUIUSvc service high CPU usage problem. Here’s what you need to do.

Rollback Audio Drivers
  • Open Device Manager on your computer.
  • Expand the Audio input and outputs.
  • Right-click on your speaker driver, and select ‘Properties‘.
  • Next, switch to the Driver tab, and select ‘Roll back driver

That’s it! This is how you can roll back audio drivers to fix CxUIUSvc service high RAM usage 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 get them from the website of your laptop’s manufacturer.

For example, if you use a Lenovo Laptop, head to Lenovo’s official website and search for Conexant Audio Drivers. You need to download the most compatible driver with your laptop model.

After downloading it, uninstall your existing audio driver via Device Manager, and install the driver you’ve downloaded. After installing the driver manually, restart your laptop to fix the problem.

5. Disable Cxuiusvc Service

If Cxuiusvc Service is still raising the CPU and RAM usage and freezing your computer, the ultimate way to fix this issue is by disabling the Cxuiusvc Service. However, disabling the Cxuiusvc Service might hamper the performance of your audio devices.

Disable Cxuiusvc Service
  • First of all, open Windows search and type ‘Services‘.
  • Open the Service app and find Cxuiusvc Service.
  • Right-click on Cxuiusvc Service and select Properties.
  • On the Startup type, select ‘Disabled‘.

Once done, click on Apply and then on Ok.

That’s it! This is how you can fix Cxuiusvc Service high RAM usage on Windows.

The focus of this guide is to provide solutions to the high CPU usage issue caused by the CxUIUSvc Service in Windows 10/11. If you require further assistance with resolving the high RAM/CPU usage caused by this service, feel free to leave a comment below. Additionally, if you found this article helpful, do not hesitate to share it with your friends.