KiCad 5: default footprints are missing
When you start KiCad 5 for the first time, it should have prompted you with this dialog:

The recommended option copies the default library folders that you see in your Explorer window.  It looks like you may have chosen the third option and ended up with an empty library table.
You can copy the default by hand.  It is in C:\Program Files\KiCad\share\kicad\template\fp-lib-table.  You can copy it to the locate you have blacked out in the top of the footprint library table window &lt;user directory&gt;\AppData\Roaming\kicad\