What is kbdclass?

The genuine kbdclass.sys file is a software component of Microsoft Windows Operating System by Microsoft.
The system file that allows your keyboard to interface with the Windows Operating System, this driver is included in all released of Windows. It can be superseded by other third party keyboard drivers, but this file is fairly reliable for most Windows or generic keyboards. Founded in 1975, Microsoft's flagship product is the Windows operating system, which is installed on over 90% of workstations worldwide.

KbdClass stands for Keyboard Class Driver

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

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

Kbdclass.sys file information

The process known as Keyboard Class Driver belongs to software Microsoft Windows Operating System by Microsoft (

Description: Kbdclass.sys is not essential for the Windows OS and causes relatively few problems. Kbdclass.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 35,384 bytes (31% of all occurrences), 42,576 bytes and 8 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. The service has no detailed description. The file is a trustworthy file from Microsoft. It is a keyboard driver, can record inputs. The file is not a Windows system file. It is digitally signed. kbdclass.sys appears to be a compressed file. Therefore the technical security rating is 33% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to do the following:

Recommended: Identify kbdclass.sys related errors

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

Windows Tastaturtreiber
Logitech Mouse driver
  waspy   (further information)
error 0x0000007e
this is a keyboard driver
Tastaturtreiber, sicher und notwendig / Keyboard driver, secure and necessary
Windows Tastaturtreiber (Windows Keyboard Driver

Rating chart

Summary: Average user rating of kbdclass.sys: based on 6 votes with 6 user comments. 5 users think kbdclass.sys is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. One user is not sure about it.

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Best practices for resolving kbdclass issues

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

kbdclass.sys [all]