I don’t fucking know why I can’t eject USB hard drives. I installed the SysInternals apps, and best they can tell me is that Dropbox is fucking with the drives. I explicitly told Dropbox to not fuck with USB drives. I don’t know who’s lying, I just want whoever is fucking with the drives to stop fucking with the drives, OK??? OK.
Linux doesn’t care if you have a file open in multiple places. In fact, if you edit it in one place, it might even prompt you to overwrite with the new data, or save-as to a different file, in the other place