The cmudax.sys file is a component driver utility of the C-Media High Definition Audio Interface application, which is a small program embedded into the firmware resources and device driver software utilities that are packaged with certain C-Media audio chipsets, PCI soundcards and devices. This means the cmudax.sys driver is placed into the Windows-based system upon the installation of the C-Media High Definition Audio Interface application, which is in turn deployed into the system after the integration of these associated C-Media firmware utilities and device driver software components of corresponding C-Media audio chipsets, PCI soundcards and devices that are equipped into the Windows-based computer. The cmudax.sys file is specifically deployed into the system to serve as the C-Media Audio WDM driver, which assists these C-Media audio chipset firmware components and soundcard device drivers in implementing the audio processing and sound playback functionalities of these hardware devices into the Windows-based computer.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. cmudax.sys. is used by C-Media Soundcard or Audio Device Firmware/Driver Software and C-Media High Definition Audio Interface Application and C-Media Audio WDM Driver, If you shut down cmudax.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop cmudax.sys, permanently you need to uninstall the application that runs this process which in this case is C-Media Soundcard or Audio Device Firmware/Driver Software and C-Media High Definition Audio Interface Application and C-Media Audio WDM Driver, from your system.

After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.

The ReviverSoft experts have not yet reviewed cmudax.sys

A process usually a part of an installed application such as C-Media Soundcard or Audio Device Firmware/Driver Software and C-Media High Definition Audio Interface Application and C-Media Audio WDM Driver, or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.

We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.

The first thing you should do if cmudax.sys. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that cmudax.sys, belongs to, in this case C-Media Soundcard or Audio Device Firmware/Driver Software and C-Media High Definition Audio Interface Application and C-Media Audio WDM Driver