: Windows Defender or third-party antivirus software flags the emulator DLL as a false positive and quarantines it.
: Find any recent items flagged as "Trojan" or "HackTool" inside your Sonic Generations installation folder. They usually target steam_api.dll . sonic generations cracked steam client not running link
If the files were completely destroyed by your antivirus, you must re-extract them from your original download source. : Windows Defender or third-party antivirus software flags