Running Ark SE Server on PC, how to run background Proces

Hi im running the new game ARK Survivor Evolved - Server on my Pc, Im needing to set it to Run as a Background service. So that I can LOCK my pc and the server will continue to run and be avaliable.

I have a bat file that starts the server, I can also log in from the same PC to play, and friends can also log in so far its running great. Just that if I leave my pc I have to leave it unlocked.

Does anyone know how or what or where I can find instructions on adding this

Thanks in advance.