So my language is Norwegian... Never had a problem with AMD drivers before regarding my language.
But since the Crimson edition, the language of the setup isn't fully translated or it might be bugged.
After installation you should see Restart now, restart later in that language.. It's displayed in Russian.....
If you don't know the Russian words for restart now or later.. your gambling on now or later!
Fix the error.. highlighted in the uploaded image.