Alt + F4 is a Windows keyboard shortcut that completely closes the application you're using. It differs slightly from Ctrl + F4, which closes the current window of the application you're viewing.

The combination of ALT + F4 is useful for shutting down applications and systems. It is one of the most-used keyboard shortcuts. However, many users report that the combination doesn’t work. If you ...

If you're using Microsoft Excel on a Windows PC and enjoy using keyboard shortcuts to improve your productivity, you should definitely learn the many ways in which F4 can save you lots of time. To ...

The year is drawing to a close, so there’s a very good chance that you now find yourself staring straight down the gaping maw of Windows 8. Maybe someone gave you a new Windows tablet or PC as a gift.