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Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\KONAMI\PES2017 (path may vary slightly). pes 2017 language change russian to english better
For Steam users who may have purchased a key from a third-party site that activated a Russian license, there is a workaround involving launch parameters, though this has mixed results depending on Steam's current API handling. (Additional related search suggestions provided