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The problem with CxUIUsvc (Conexant SmartAudio service) using the laptop processor in a high usage. There some procedures could remove the driver/service or deactivated it.


Step 1: Uninstall and reinstall the Conexant High Definition SmartAudio driver


  1. Uninstall the current driver, and then install the most up-to-date driver.
  2. In Windows, search for and open Device Manager.
  3. Navigate to the Conexant High Definition SmartAudio driver, right-click it, and then select Uninstall device.
  4. If you are prompted to delete the driver software, select Delete the driver software for this device box, and then click Uninstall.
  5. Restart the computer.
  6. Go to the HP Customer Support - Software and Driver Downloads page.
  7. Navigate to the product page for your computer.
  8. Expand the Driver-Audio section.
  9. Click Download next to your product audio driver.
  10.  After the driver finishes installing, restart the computer.
  11.  If the issue persists, continue to the next step.


Step 2: Configure the Conexant Utility Service


  1. Press the Windows logo key + the R key.
  2. In the Open field of the Run window, type services.msc, and then click OK.




  1. In the Services window, navigate to CxUtilSvc, and then double-click it.
  2. The Properties window opens.
  3. In the Properties window, change the Startup type to Stop.



          Click Apply, and then click OK.


It is possible in that last process, if the Windows Update to a new version, the Conexant service probably will start again, so you may stop it again following that step.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation