Change Windows 7/8/10 system language - welcome screen, login, etc
There is a great, but not really obvious option that can do this. It will work for Windows 7, Windows 8 and Windows 10.
Here are the steps:
- open Control Panel
- open Region
- open the Administrative tab
- click the button Copy Settings
On this screen you can copy your current language (of course, make sure your user language is set to the one you want to use everywhere) to the system account which will cause everything to show up in the language you choose. You also have an option to set it as default for new users.
Changing the settings will require a system restart.
This answer is inspired by Kari's answer on sevenforums.
