WireShark npf issues

The npf driver is not visible in your regular "Computer Management" WMI-interface. The npf status is best checked with the command line.

Run a cmd.exe as administrator and run the command sc qc npf.

You should get some output like this:

C:\Windows\system32>sc qc npf
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: npf
        TYPE               : 1  KERNEL_DRIVER
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : system32\drivers\npf.sys
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : NetGroup Packet Filter Driver
        DEPENDENCIES       :
        SERVICE_START_NAME :
If your driver is not properly started, activate it with the command sc start npf

Finally, to start the service automatically, use the command sc config npf start=auto

Remember to run your cmd.exe as administrator when issuing these command.