Sticky keys
StickyKeys is an accessibility feature to help computer users who have physical disabilities, but it is also used by others as a means to reduce repetitive strain injury (or a syndrome called the Emacs Pinky). It essentially serializes keystrokes instead of pressing multiple keys at a time: StickyKeys allows the user to press and release a modifier key, such as Shift, Ctrl, Alt, or the Windows key, and have it remain active until any other key is pressed.
History
Microsoft first introduced StickyKeys to their Windows operating system with Windows 95 and is also used on later versions.
Enabling
To enable this shorcut, the ⇧Shift key must be pressed 5 times in short succession. Notably, this "feature" has posed difficulties for users which naturally use the Shift key heavily, such as gamers. When a gamer pushes the Shift key enough times within a certain period of time, the shortcut activation popup can easily disrupt many games. This shortcut is also not able to be permanently disabled in a normal user's course of actions; it requires manipulation of the Windows registry.
This feature can also be turned on and off via the Accessibility icon in the Windows Control Panel.
See also
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