Of all the keys on your keyboard, you probably use caps lock the least. If you haven't repurposed it to do something useful, it probably only serves AS AN ANNOYANCE WHEN YOU ACCIDENTALLY press it and have to type everything over again.

Thankfully, Windows provides an accessibility option to alert you when you trigger caps, num, or scroll lock — also useful if you often use your number pad. Here's how to turn it on in Windows 7, 8, and 10.

For Windows 10, open the Settings menu by clicking Start > Settings and choose Ease of Access. On the left menu, choose Keyboard and under the Toggle Keys heading you can enable the setting to hear a tone when you press a lock key.

For convenience, right below it you can also enable a shortcut: just hold the num lock key for five seconds to quickly enable or disable the tone.

Windows 8.x users should open the Charms bar with Windows Key + C and then click Settings. Choose Change PC Settings at the bottom of the bar, then select Ease of Access on the left side. Choose Keyboard and then you can enable the Toggle Keys option — there's unfortunately no shortcut in Windows 8/8.1 for some reason.

In Windows 7, open the Start menu and type "change how your keyboard works" and click the resulting option in the menu. Under Make it easier to type, check the box next to Turn on toggle keys, and enable the shortcut underneath this option if you'd like to be able to quickly switch this option on or off.

Keep using these keys by accident? You're not alone. Check out other problematic keyboard shortcuts.

Do you ever use Caps Lock, or have you repurposed it? Let us know what you think of this key below!

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