If you don’t have then Create Windows 10 Installation media or Bootable USB using media Creation Tool. To fix the issue you need to boot from an installation media to Access Advanced options. Windows 10 stuck Choose your keyboard layout screen The situation may seem unexplainable, May various reasons that can cause this problem Where “Windows 10 Upgrade stuck at Choose your keyboard layout screen” it may be the installed Device driver not compatible with the newer Windows version, System files get corrupted while upgrade process, May Any windows update bug causing the issue And more the most common I personally found this can be a potential driver issue. Also, users report they are not able to operate even the mouse or keyboard at this screen and thus, they can’t select anything on this screen and are stuck in the process. While install or upgrade Windows 10 Version 21H1 PC stuck at Choose your keyboard layout screen? Selecting the keyboard layout didn’t show the next screen or there is no way to go back to the previous window.

Windows 10 update keyboard layout