What is ctaud2k?

Ctaud2k.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if ctaud2k.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for ctaud2k drivers in need of updating

Ctaud2k.sys file information

The process known as Creative WDM Audio Device Driver belongs to software Creative Audio Driver by Creative Technology (

Description: Ctaud2k.sys is not essential for the Windows OS and causes relatively few problems. Ctaud2k.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 499,584 bytes (28% of all occurrences), 526,232 bytes, 837,548 bytes, 500,480 bytes or 498,688 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The service has no detailed description. It is not a Windows system file. It is a trustworthy file from Microsoft. Therefore the technical security rating is 15% dangerous; however you should also read the user reviews.

Recommended: Identify ctaud2k.sys related errors

Important: Some malware disguises itself as ctaud2k.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the ctaud2k.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

This is a Creative SoundBlaster driver file (Creative WDM Audio Device Driver)
  amber from  
ctaud2k.sys is Creative WDM Audio Device Driver, located in C:\WINDOWS\system32\drivers\ctaud2k.sys
It fails in windows 10. shuts down the entire computer

Rating chart

Summary: Average user rating of ctaud2k.sys: based on 11 votes with 3 user comments. 10 users think ctaud2k.sys is essential for Windows or an installed application. One user thinks it's probably harmless.

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Best practices for resolving ctaud2k issues

A clean and tidy computer is the key requirement for avoiding problems with ctaud2k. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ctaud2k.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ctaud2k.sys [all]