Oir sonido cuando se presiona CAPS LOCK

Sure your keyboard has small lights (LEDs) to indicate if your CAPS, NUM and SCROLL lock keys are on or off. When you're busy typing you might accidentally hit one of these locks which might force you to retype.

Here's how to make your computer beep whenever any of the lock keys change state:

• Go to the Panel de Control (Control Panel)
• Double click Opciones de Accesibilidad (Accessibility Options)
• Turn on the ToggleKeys checkbox
• Click OK

Fuente LINK