What is alcxmntr.exe?

The genuine alcxmntr.exe file is a software component of Realtek Audio - Event Monitor by Realtek Semiconductor.
When Realtek audio drivers are installed, this audio event monitor is generally installed automatically. It logs information from the user regarding usage of Realtek services. Realtek collects this data for quality control purposes. The audio driver will continue to work properly if the audio event monitor is removed. Known for their integrated circuit production, Realtek employs over 2,000 people worldwide.

ALcxMntr stands for Advanced Logicx Monitor

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the alcxmntr.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for alcxmntr.exe related errors

Alcxmntr.exe file information

Windows Task Manager with alcxmntr
Alcxmntr.exe process in Windows Task Manager

The process known as Realtek Audio - Event Monitor or Realtek (version AC97 Audio - Event Monitor) belongs to software Realtek Audio - Event Monitor or Realtek (version AC97 Audio - Event Monitor) by Realtek Semiconductor (

Description: Alcxmntr.exe is not essential for the Windows OS and causes relatively few problems. Alcxmntr.exe is located in the C:\Windows folder. Known file sizes on Windows 10/8/7/XP are 57,344 bytes (95% of all occurrences), 50,176 bytes, 70,144 bytes or 77,824 bytes. 
The alcxmntr.exe file is not a Windows system file. It is a trustworthy file from Microsoft. The program is not visible. The process starts upon Windows startup (see Registry key: MACHINE\Run). Therefore the technical security rating is 22% dangerous; however you should also read the user reviews.

Recommended: Identify alcxmntr.exe related errors

External information from Paul Collins:

Important: Some malware disguises itself as alcxmntr.exe, particularly when not located in the C:\Windows folder. Therefore, you should check the alcxmntr.exe 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

It is installed from hp before the computer sale. The PC have Realtek chip for sound
  Emilio V. Bunge  
Anytime you have a different sound card installed, some drivers are retained, do not delete if you still have realtek installed. If infected, find reinstall and delete original if no other source can be found.
Lately my computer started freezing up to a point I had to totally shut it down and reboot it,I even changed internet browsers, I ran several different spyware and registry cleaners, nothing worked. I found this file some how got in the "Start Up" list a few days ago, since I took a photo of everything needed in the start up menu with my camera when my computer was running good I knew ALCXMNTR.EXE did not belong there. I did remove it from the start up and c:\windows\ALECMNTR.EXE.
This file runs your sound. I screwed with it and now my sound will not work. Leave LCXMNTR.EXE alone!!!
  W.B.   (further information)
Well, I deleted it, and my sound still works, so I don't see the point in having it eat up my V-Memory.
Realtek AC97 driver. Let it be.
Even tough it's disabled in MSConfig and stays unchecked, it is still running. You can use Task Manager, or EndItAll to see that it is still active. I have no idea what is causing it to start up.
this is the realtek audio driver for my HP computer
  Larry Holmes  
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of alcxmntr.exe: based on 52 votes with 9 reviews. 32 users think alcxmntr.exe is essential for Windows or an installed application. 2 users think it's probably harmless. 10 users think it's neither essential nor dangerous. One user suspects danger. 7 users think alcxmntr.exe is dangerous and recommend removing it. 7 users don't grade alcxmntr.exe ("not sure about it").

Do you have additional information?
What do you know about alcxmntr.exe:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving alcxmntr issues

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

alcxmntr.exe [all]