If ProVide is not listed among your services, you can run the installservice.bat file located in the ProVide folder to add the service.
Alternatively, you can run the ProVide installer again and install it to the same directory as your existing ProVide folder. This will register the service again but also upgrade ProVide to the latest version, so make sure you have an active license.
If the Services window was open before you added the service, make sure to press F5 while the window is active to refresh the list.