Didn't know what mode "S" was when I bought this thing.  AFTER it got here I was treated to the sensation  that staying in mode S relegated me to a glorified and overpriced Chrome book!  Seriously, this mode will NOT ALLOW you to download any app that's NOT A Microsoft approved app that can ONLY be installed on YOUR MACHINE by the Micro Czar's appstore!!!!  That includes any other browser you may be fond of!  Total bummer, right up to I canceled mode S and went back to what I usually do and use on MY machine.  Nuff said!