You can change your Windows 10 login screen through your device's Settings app, and make it display any photo you like.
Change can be hard. If the Windows ... to your Start Menu for easy access, click the All button. Find the app you want to add in the list, then right-click on it and select Pin to Start. (Credit: ...
You can change the keyboard language on Windows by going to the Settings app, and then opening the "Time & Language" menu.