I have created a RemovePreload.reg text file with the following content, this way this fix can easily be re-applied every time without navigating the registry:

Windows Registry Editor Version 5.00
[-HKEY_USERS\.DEFAULT\Keyboard Layout\Preload]

To use this, save it in a text file and change the extension from .txt to .reg. Then whenever it comes back, you can just double click it and restart or sign out.

source: https://superuser.com/questions/1092246/how-to-prevent-windows-10-from-automatically-adding-keyboard-layouts-i-e-us-ke#1094953