It's my opinion that the Windows Control panel (pictured here: <a href="http://toastytech.com/guis/win10control.png" rel="nofollow">http://toastytech.com/guis/win10control.png</a>) is the single worst designed user interface of all time.<p>Why? It is the only - and I mean only - list of items on a screen organized horizontally in any OS I can think of. Any time you resize the window, every single item in the list is now reorganized into different rows and columns.<p>Ever wonder why you can never seem to find what you want in the Control Panel? It's not just because Microsoft loves to subtly change the names of core settings every year or so, but because they're constantly moving and shifting around.<p>Seriously, give me an example of a horizontally organized list like this in any OS - past, present, desktop, mobile... I can't think of any. Nothing else is so dumb. There must be special code in this particular window to keep it so moronic, that Microsoft continues to maintain, year after year. Amazing.<p>/rant