Kbldfltr Service Defaults in Windows 8

Keyboard Lockdown Subsystem by Microsoft Corporation.

Default Settings

Startup type:
Windows 8 Core Windows 8N/A
Windows 8 Pro Windows 8N/A
Windows 8 Enterprise Windows 8N/A
Windows 8 Core Windows 8.1N/A
Windows 8.1 ProManual
Windows 8.1 EnterpriseManual
Windows 8 Core Windows 8.1 Update 1N/A
Windows 8.1 Update 1 ProManual
Windows 8.1 Update 1 EnterpriseManual
Display name:Kbldfltr
Service name:kbldfltr
Service type:kernel
Error control:normal
Group:Extended Base
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\kbldfltr

Default Behavior

The Kbldfltr service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Kbldfltr fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the kbldfltr service hasn't been started.

Restore Default Startup Configuration for Kbldfltr

1. Run the Command Prompt as an administrator.

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

sc config kbldfltr start= demand

3. Close the command window and restart the computer.

The kbldfltr service is using the kbldfltr.sys file that is located in the %WinDir%\system32\drivers folder. If the file is corrupted or deleted, you can put it back in there.