Ovrserver_x64 uses 7 gigs of bandwith a month, even if your Rift is sitting in the box, for updates i am told. The only way to stop it is to delete everything. Then you will have to re-download the oculus installer which is also huge, when you want to play the Rift. Also let us save the installer and update from there instead of having us re-download it everytime there is an issue.