How do you get rid of AVAST Secureline VPN Wireguard from my Network Adaptors

I no longer require Avast on my PC. I have deleted it but it remains in my Network adaptors as Avasti Wireguard wintun adaptor. It keeps running on my wifi and is slowing my connection down. How do I get rid of the adaptors.

I have tried using the Avasti uninstaller, no luck and have tried uninstalling the adaptors directly but again no luck.

If I disable them they just re enable themselves and keep on interferring

Any help would be appreciated