The launcher executable ( Launcher.exe ) is a separate program. Look for an "English Launcher" add-on. Or, bypass the launcher entirely: edit config.txt in your Documents\Blur\SavedGames folder manually. Change lang=RU to lang=EN .
The Russian-to-English patch serves a second, often-overlooked purpose: it allows you to connect to community-run master servers. The official Blur online service died in 2011, but fans revived it via (formerly "Blur: The Final Lap"). blur pc game russian to english language patch