What is KMW_KBD?

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

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

KMW_KBD.sys file information

The process known as Kensington MouseWorks Keyboard Class Filter Driver belongs to software Kensington Input Devices Class filter driver by Kensington Technology Group (

Description: KMW_KBD.sys is not essential for Windows and will often cause problems. The file KMW_KBD.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 5,376 bytes (60% of all occurrences) or 5,120 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The software has no file description. The program is not visible. The KMW_KBD.sys file is a keyboard driver, can record inputs. There is no detailed description of this service. It is not a Windows core file. The KMW_KBD.sys file is a trustworthy file from Microsoft. KMW_KBD.sys appears to be a compressed file. Therefore the technical security rating is 48% dangerous, however you should also read the user reviews.

Recommended: Identify KMW_KBD.sys related errors

Important: Some malware camouflages itself as KMW_KBD.sys. Therefore, you should check the KMW_KBD.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

Mouse Software Functions
  A W   (further information)

Summary: Average user rating of KMW_KBD.sys: based on 1 vote with 1 user comment. One user suspects danger.

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Best practices for resolving KMW_KBD issues

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

KMW_KBD.sys [all]