Hopefully, none of you would encounter this at such a bad time such us we did, so if you have read this article, you'd know what to do in case something like that would happen to you.
Go to START -> Control Panel then select accessibility, here you can turn it off.
or you could tweak it to your preference.
Sticky keys is a feature of computer Desktop Environments. It is an accessibility feature to aid users who have physical disabilities. Sticky keys allows the user to press a modifier key, such as Shift, Ctrl, Alt, or the Windows key, and have it remain active until another key is pressed.
On Windows, it is enabled by default and activated by pressing the Shift key 5 times in sequence or by holding down a modifier key for longer than 5 seconds. When sticky keys is activated in Windows, a beep is sounded whenever the Shift, Ctrl, Windows key, or Alt keys are pressed henceforth. It can be disabled by pressing both Shift keys at the same time. Another way to disable it is to press on Ctrl and Shift at the same time.
On KDE, one can enable it in the KDE control center as well as pressing Shift 5 times in sequence or holding down Shift for 8 seconds.
On Windows XP, it can be disabled through the Control Panel's Accessibility options. The shortcut used to re-enable it can also be disabled through the StickyKeys Settings found in the same dialog box.