If you be likely to press Caps Lock key by mistake plenty then here is a idea for you. Here shown how to make PC beep and flash each time you press Caps Lock key.

1. Go to Start, Settings, and Control Panel. Double tick Accessibility Options Icon.

2. On Keyboard tab, check the Use Toggle Keys checkbox.

3. Then click Sound tab and check the Use SoundSentry checkbox.

4. Below choose the visual warning you will choose Flash active window.

5. Press Ok and you are completed and set to try it out.