batcmd.com Windows 11 Services

Smart card PnP Class Filter Driver - Windows 11 Service

Smart card reader filter driver enabling smart card PnP.

This service also exists in Windows 10, 7 and 8.

Startup Type

Windows 11 version Home Pro Education Enterprise
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Default Properties

Display name:Smart card PnP Class Filter Driver
Service name:scfilter
Type:kernel
Path:%WinDir%\System32\DRIVERS\scfilter.sys
Error control:normal
Group:PnP Filter

Default Behavior

The Smart card PnP Class Filter Driver service is a kernel mode driver. If Smart card PnP Class Filter Driver fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the scfilter service has failed to start.

Restore Default Startup Type for Smart card PnP Class Filter Driver

Automated Restore

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

2. Save the RestoreSmartcardPnPClassFilterDriverWindows11.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 scfilter.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.