You, accidentally, has pressed the “sleep” key in your multimedia keyboard instead another key? I wanna known how designed this “happy” key to express my total insatisfaction with this.
Now I’ll show how to disable this key in Windows Vista.
Go to Control Panel, double click in Power Options:
Then click in “Choose what the power buttons do”:
Next and last step, in “When I press the sleep button” choose “Do nothing”, save and apply!
After this tutorial you can press this key in any time. 