The Windows 8 user interface, or UI for short, is remarkably different from the Windows 7 or previous versions of the operating system you might be used to. By default, the Start screen greets you as soon as you log on to your computer. Before you jump in and start clicking and scrolling, take a few moments to orient yourself to the new interface. Much like learning your way around a new city, navigating Windows 8 has a bit of a learning curve. You must figure out where to find the apps you need and which direction to go to get you where you want to be. Windows 8.1 adds some refinement to the Windows 8 Start screen, and we’ll note the differences when they’re important.