Chinese characters on the first screen after switch on

The screen before I put my PIN in (I don't know if that is the lock screen or called something else) has suddenly started to use Chinese traditional language. I have checked and updated the region in control panel and copied the settings to lock screen and even ticked the new use box, as suggested by other solutions. I've rebooted several times but it still comes back as Chinese. When I click on the area that (I assume is saying) I want more information on the screen, it opens up MSN page with Chinese stories and information. How do I change the settings to show English text again?

Why has this happened? I have not changed any settings in my system prior to now.

I also can't get a screenshot because as soon as I touch a key the PIN request screen comes up replacing the screen with the Chinese characters in it.