Keyboard Class Driver (kbdclass) Service Defaults in Windows 7

Keyboard Class Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Keyboard Class Driver
Service name:kbdclass
Service type:kernel
Error control:normal
Group:Keyboard Class
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\kbdclass

Default Behavior

Keyboard Class Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Keyboard Class Driver fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the kbdclass service is not running because of the error.

Restore Default Startup Configuration for Keyboard Class Driver

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config kbdclass start= demand

3. Close the command window and restart the computer.

The kbdclass service is using the kbdclass.sys file that is located in the %WinDir%\system32\DRIVERS folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 7 installation media.