Enabling or Disabling Touch Controls
Touch controls can be enabled or disabled using the Touch controlsoption in the setup menu (0 276). Select Enable to enable touchcontrols for shooting, playback, and menu navigation or Playbackonly to enable touch controls for playback only.
The above is cut from page 17 of the D5500 Reference manual... You can download the entire manual from the Nikon web site
If you don't want touchscreen...buy the D5300... and don't waste the money for something that you don't want... There are plenty of reviews of those cameras, and the only significant difference is the touchscreen