Windows keyboards include several keys most people rarely use, and Microsoft's free PowerToys utility makes it simple to reassign or disable them so they serve a more useful purpose. Repurposing underused keys, such as Caps Lock, Scroll Lock or function keys, can streamline typing and reduce accidental disruptions caused by pressing them unintentionally.

To remap a key, users install PowerToys and open its Keyboard Manager tool, then select a key to overwrite and choose what it should send instead, whether that's another key, a shortcut combination, a system command, or custom text. The tool also allows entire shortcuts to be remapped within specific apps or system-wide, and changes are easily reversible since they only apply while PowerToys is running and affect just the current user account. Alternatives such as SharpKeys make permanent Registry-level changes affecting all users, while manufacturer software from brands like Logitech and Razer suits gaming-specific remaps.