What is alcxsens?

Alcxsens.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 alcxsens.sys is a Windows system file or if it belongs to an application that you can trust.

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

Alcxsens.sys file information

The process known as Sensaura WDM (version 3D Audio Driver) belongs to software Service for WDM (version 3D Audio Driver) by Sensaura (

Description: Alcxsens.sys is not essential for Windows and will often cause problems. The file alcxsens.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 400,384 bytes (61% of all occurrences), 391,424 bytes, 404,736 bytes, 391,552 bytes or 391,680 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The file is a file with no information about its developer. The program has no visible window. The service has no detailed description. It is not a Windows system file. Alcxsens.sys is a trustworthy file from Microsoft. alcxsens.sys appears to be a compressed file. Therefore the technical security rating is 31% dangerous; however you should also read the user reviews.

Recommended: Identify alcxsens.sys related errors

Important: Some malware disguises itself as alcxsens.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the alcxsens.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

I have problems with this driver. It show me anytimes a blue windows with an error.
it is WDM sound driver for REALTEK AC'97 onboard audio
My computer gives me a blue screen with this error while playing chronicles of riddick
This file also is the cause of a blue screen problem for me too but only when i play the game tribes and its really annoying it happenes randomly and it reboots my computer.
It causes a blue screen everytime I play any vidoe game. Multi sound cards make this worse.
  Jen   (further information)
it gives me a bsod with a DRIVER_IRQL_NOT_LESS_OR_EQUAL error   (further information)
It blue screens my pc while playing chronicles of riddick
It's part of real-tek audio setup
Don't know why it's bugging my computer, just restartes my computer while playing
AC 97 onboard sound driver
  Zeero   (further information)
I can only tell that it's about a month I see blue screens on my laptop and sometimes there's something written about this file.
  Johnny V.  
This file came with a driver setup file for realtek ALC655. My computer bluescreens though sometimes while I am playing counter strike and this file is usually the reason. I get the DRIVER_IRQL_NOT_LESS_OR_EQUAL error.
It's part of the RealTek'97 Audio driver set and seems to be poorly written. Contact your hardware manufacturer and ask them to update their drivers to a functional version.
If you have bluescreens.. i think you need a update! look at my link ;)
  Phil   (further information)
This is a Realtek Audio file used for your onboard sound system. If you are using another soundcard (eg. Creative Prodigy, etc), it is recommended to remove it. If nt go to the link given and find "Windows 98Gold/98se/Me/2000/XP for Driver only" and DL the .exe file and everything will be fixed.
  NumBSkull   (further information)
This is a Realtek Audio file used for your onboard sound system. If you are using another soundcard (eg. Creative Prodigy, etc), it is recommended to remove it. If nt go to the link given and find "Windows 98Gold/98se/Me/2000/XP for Driver only" and DL the .exe file and everything will be fixed.
  NumBSkull   (further information)
Blue Screen appears after using Div-x.
  Boy Bastos  
Part of the Realtec sound driver, often on AC'97 chipset on-mother-board soundcards.
it crashes me every time that sux i hope a CREATIVE Audigy 4 would fix this problem :]
It is the realtek sound driver and after restarting games all the time I solved it by loading an older version of the driver wich is still compatible with the sound card
WDM 3D Audio Driver copyright 2003 to Sensaura Ltd
  Chris   (further information)
C:\WINDOWS\system32\drivers\ALCXSENS.SYS File size: 395 KB (404736 bytes) Created: [When you installed sound driver] Modified: Friday, 15 August 2003, 1:16:38 AM - File version: Description: Sensaura WDM 3D Audio Driver Company: Sensaura Ltd Language: English (United Kingdom) ((See also: ALCXWDM.SYS = Realtek AC'97 Audio Driver (WDM)))
its a driver for REALTEK AC'97 audio go get the newer version at
  Sebas   (further information)
Kernel driver, Demand, system32 folder according to TDSS killer (with all parameters) it's part of the Realtek Audio drivers (which I have) but it's unsigned so it is labeled as suspicious. It's legitimate.

Rating chart

Summary: Average user rating of alcxsens.sys: based on 30 votes with 24 user comments. 9 users think alcxsens.sys is essential for Windows or an installed application. 8 users think it's probably harmless. 8 users think it's neither essential nor dangerous. 3 users suspect danger. 2 users think alcxsens.sys is dangerous and recommend removing it. 4 users don't grade alcxsens.sys ("not sure about it").

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Best practices for resolving alcxsens issues

A clean and tidy computer is the key requirement for avoiding problems with alcxsens. 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 alcxsens.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

alcxsens.sys [all]