We are trying to keep our network disk space under control and we are wondering if we can delete the _backup folder or .RWS file in that folder. Revit seems to recreate them every time you save to central and not complain if they are not there. We are looking at running a script that deletes them if they are more than 15 days old. It is only about 50GB but it all adds up. We tell people to audit and recreate the central every week so this should not be a problem right?