Where is Plex Media Server installed on my NAS? Plex is installed to the following locations: /volume1/@appstore/Plex Media Server (main application folder) /var/packages/Plex Media Server (various files and scripts) /volume1/Plex (The Plex Folder, where your libraries and metadata are stored) Note: The first two locations are only visible by using SSH to log into your NAS. User name is 'admin' or 'root'. Password is the same as your NAS 'admin' password.