[PROBLEM] I messed something up

[greenbag]

Somewhere along the way, I seem to have enabled something, and I can't figure out what or where. Every time I boot, I get a menu box (or whatever it's called), first for VIDEO, then MUSIC.. each with a choice to browse. These aren't the Video and Music directories in Kodi, they're the 2 partitions in my external WD Passport drive. How the heck do I disable this message?