Remove Teefer network filter driver

After uninstalling Symantec Endpoint Protection, even using Symantec's CleanWipe tool, the network filter "teefer2" is still there.
If you simply remove or disable the teefer service using Regedit, network adapters become unfunctional.
If you uninstall the network adapters using Device Manager and reboot, the teefer2.sys driver is again included in the network stack.
Symantec apparently has a "teefer remover" tool which is available on request.

Here is how to correctly remove teefer in Windows 10:

C:\windows\system32>netcfg -q symc_teefer2
'symc_teefer2' is installed.

C:\windows\system32>netcfg -u symc_teefer2
Trying to uninstall symc_teefer2 ...

... symc_teefer2 is not installed.

... done.

Open Regedit an delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\teefer key.
Finally delete \Windows\system32\teefer2.sys file.