How to change japanese keymap from QWERTZ to QWERTY on Windows 10?

This procedure should help:

  • Start regedit
  • Navigate to key:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00000411
  • Ensure you are on the right key : "Layout Text" should read "Japanese"
  • Change the value of "Layout File" from "KBDJPN.DLL" to "KBDGR.DLL" (without the quotes)
  • Reboot.

If this doesn't help, undo it by returning the value of "KBDJPN.DLL" (without quotes).