Windows 11 Services

Kbldfltr - Windows 11 Service

This service also exists in Windows 10 and 8.

Startup Type

Windows 11 version Home Pro Education Enterprise
21H2 not exists Manual Manual Manual
22H2 not exists Manual Manual Manual
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Default Properties

Display name:Kbldfltr
Service name:kbldfltr
Error control:normal
Group:Extended Base

Default Behavior

The Kbldfltr service is a kernel mode driver. If Kbldfltr fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the kbldfltr service has failed to start.

Restore Default Startup Type for Kbldfltr

Automated Restore

1. Select your Windows 11 edition and release, and then click on the Download button below.

2. Save the RestoreKbldfltrWindows11.bat file to any folder on a local drive such as SSD or a hard disk.

3. Right-click the downloaded batch file and select Properties.

4. Check the Unblock checkbox and click OK.

5. Right-click the batch file again and select Run as administrator.

6. Restart the computer to save changes.

Note. Make sure that the kbldfltr.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows 11 installation media.

Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.