Don’t. Just don’t. Both Plex and gaming need internet access.
Connecting a Windows 7 to the net is a very bad idea, now that there is no way to get any updates for it.
Running Plex on Windows 7 requires several Windows updates which are no longer obtainable through the regular Windows Update channel.
Huh? What are you talking about mate? Clearly the protocols aren’t gonna change anytime soon and I’ve been running a Win7 VM over the last year for torrents and it’s been swell!