How to Unlock Keyboard on Windows Computer

Simultaneously press 'FN' (function) and your computer's function key with the image of a computer and mousepad. Depending on your computer, this key may be F5 or something else. In that case, look for the icon on the keys. Furthermore, on some computers, you will need to press the function key without the 'FN' button. In short, you will need to experiment with what applies in your case.

 

Below is an example of what that image looks like below.