Open the old Control Panel
At the top of Control Panel, set View to Icons
Select Region
Select the Administrative Tab on the resulting dialog
Click Change System Locale in the 'Language for non-Unicode Programs' section
Set the language in the drop down to the same as the System location/Language.
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Open the Settings App, then go to Time & language - Language & region
Scroll down and select Administrative language settings
On the Administrative tab click the Copy settings button
Enable 'Welcome screen and system accounts' and also New user accounts
Save that setting.
Restart (not shut down) the PC