You can use the accessibility features of Windows to audibly notify you when you've pressed the Caps Lock key. Follow these steps:
1. Click on Start >> Click Control Panel.
2. Click Ease Of Access >> Select “Change how your keyboard works” from Ease of Access Center.
3. Check the Box for Turn on Toggle Keys.
4. Click Apply. Click OK.
The ToggleKeys feature, when turned on, will beep whenever the Caps Lock, Num Lock, or Scroll Lock keys are pressed.
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