Windows
On Windows, the easiest path is PowerToys Keyboard Manager. If you want a system-wide remap for Caps Lock that does not depend on PowerToys running in the background, you can use the registry-based Scancode Map approach below.
On Windows, choose either PowerToys or the registry route.
PowerToys Keyboard Manager
This is the easiest route if you want a graphical UI and expect to tweak mappings again later.
Advantages
- It is the quickest setup path and easy to edit later from a graphical settings screen.
- It can remap a key to another key or even to a shortcut, not only to another physical key position.
- Remaps apply immediately after you confirm them.
What to keep in mind
- PowerToys must keep running in the background or the remap stops applying.
- Keyboard Manager does not work on the Windows sign-in screen or other password prompts.
- Modifier-key remaps can still interfere with some gestures, special keys, or elevated apps.
Registry-based Scancode Map
This route is better when you want a system-level remap that works without PowerToys and can stay active on sign-in screens too.
Advantages
- It gives you a system-wide remap without depending on PowerToys.
- It does not depend on keeping a background utility running.
- The remap and revert files are easy to archive so you can reproduce or undo the setup later.
What to keep in mind
- It is less convenient than a GUI and usually needs sign-out or a restart before it is fully applied.
- It only remaps physical key positions, so it is less flexible than PowerToys for shortcut-style remaps.
- Changing Right Alt can affect multilingual input behavior on some non-English keyboard layouts.
To see the detailed steps, choose the Windows method you want above.