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 many improvements. Most drivers are still not compatible with the latest Windows 11.

Recently, many Windows 10 and Windows 11 users have encountered problems with the Conexant SmartAudio II driver. Windows users have reported that CxUIUSvc service is causing high CPU and RAM usage on Windows 10.

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

What is the CxUIUSvc service?

Before understanding the CxUIUSvc service, you must first know about Conexant. In 2015, laptops and some computers were shipped with Conexant audio chips.

For the audio chipset to function properly, the Conexant SmartAudio II driver was used. However, Realtek’s arrival in the industry changed everything; Its audio driver supported most of the audio chipset.

So if you see the CxUIUSvc service in Task Manager, it is a component of the Conexant SmartAudio driver. It has to do with your device’s audio chipset and you should not disable it.

Fix CxUIUSvc service high CPU and RAM usage

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

1. Restart your computer

Restart your computer

Both Windows 10 and Windows 11 automatically check 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, there are chances that your device has recently received Conexant SmartAudio driver update and is stuck on the installation part. You can easily fix such problems by restarting your computer.

After the reboot, open the task manager again and check if the CxUIUSvc service is still triggering the high CPU and RAM usage.

2. Update your audio drivers

Update your audio drivers

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

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

Alternatively you can use Third party driver updater to update your audio drivers. There are many free third-party audio drivers out there that do their job pretty well. You can use such programs to update all your outdated device drivers.

3. Rollback of audio drivers

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

Rollback audio driver

  • Open minded device manager on your computer.
  • Expand that Audio inputs and outputs.
  • Right-click on your speaker driver and select “characteristics‘.
  • Next, go to the Driver tab and select “Reset driver

That’s it! Here’s 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 Your laptop manufacturer’s website.

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

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

5. Disable the Cxuiusvc service

If the Cxuiusvc service is still increasing CPU and RAM usage and freezing your computer, the ultimate way to fix this problem is to disable the Cxuiusvc service. However, disabling the Cxuiusvc service may affect the performance of your audio devices.

Disable the Cxuiusvc service

  • First, open Windows search and type “Services‘.
  • Open the service app and search Cxuiusvc service.
  • Right click on Cxuiusvc service and select characteristics.
  • For startup type select “disabled people‘.

When you’re done, click Apply and then click Ok.

That’s it! Here’s how to fix Cxuiusvc service high RAM usage on Windows.

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

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