Sharp Keys is a free, open-source utility for Windows that allows users to easily remap their keyboard keys. It works by modifying the Windows registry, enabling users to change the function of specific keys or disable them altogether. This can be particularly useful for customizing keyboard layouts or correcting issues with malfunctioning keys. The program features a simple interface where users can select the key they want to change and assign a new function to it. Once the changes are made, users can quickly apply them and see the effects immediately, making it a handy tool for enhancing productivity and personalizing the typing experience.