I have a similar problem and I must say that this is enormously irritating. I live in Sweden and I prefer to use a Swedish keyboard and Swedish regional format settings. But, this does NOT mean that I want context menus and applications translated to Swedish. If I wanted Swedish as the default language I would have installed the Swedish version of Windows, but I did NOT! Having mixed languages in the context menu on the desktop after installing intel Graphics drivers drives me nuts. I have tried to set everything I possibly can to English, even used the L and l switches in the setup programs but the Swedish menu alternatives still show up!
I'll keep trying and post again if I ever figure this out.