IrfanView
Best Image Viewer.
Options-Start/Exit
----Set program start foler to None
----Only one instance of IrfanView Active
----Start in full screen mode
Options-Extensions
----Images Only button
----Load only associated types while moving through directory
Options-Browsing/Editing
----If end/beg of folder is reached, loop - turned on
----Beep on folder loop - turned off
Options-Fullscreen
----Fit to screen all images
----Show text to OFF