Alcxwdm.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 alcxwdm.sys is a Windows system file or if it belongs to an application that you can trust.
The process known as Realtek AC'97 Audio Driver or Avance AC'97 Audio Driver belongs to software Windows® WDM driver for Realtek AC'97 Audio(HRTF data Copyright (version 1994 by MIT Media Lab)) or Windows® WDM driver for Realtek AC'97 Audio or Windows® WDM driver for Avance AC'97 Audio or Service for Realtek (version AC97 Audio (WDM)) by Realtek Semiconductor (www.realtek.com.tw) or Avance Logic (www.avance.com).
Description: Alcxwdm.sys is not essential for the Windows OS and causes relatively few problems. Alcxwdm.sys is located in the C:\Windows\System32\drivers folder.
Known file sizes on Windows 8/7/XP are 2,279,424 bytes (17% of all occurrences), 2,278,784 bytes and 67 more variants.
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. There is no detailed description of this service. Alcxwdm.sys is not a Windows system file. Alcxwdm.sys is a trustworthy file from Microsoft. alcxwdm.sys appears to be a compressed file. Therefore the technical security rating is 20% dangerous, however you should also read the user reviews.
Recommended: Identify alcxwdm.sys related errors
Important: Some malware disguises itself as alcxwdm.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the alcxwdm.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.
A clean and tidy computer is the key requirement for avoiding problems with alcxwdm. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off doing a repair of your installation, or in the case of Windows 8, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To help you analyze the alcxwdm.sys process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.