"Caps lock" window appears, how to delete it?

On a Windows 10 computer, when you press the "Shift Verr" key, a window at the bottom right appears to indicate:
Caps lock ON or Caps lock OFF The problem is that this seems to cause color changes on some web pages. So I would like to delete this software but can't find it anywhere: - nothing in programs and features - nothing in the services - nothing in the tasks I can't find it. Do you have any idea how to delete it please? THANKS