: Open Command Prompt as an administrator and type sfc /scannow . This tool scans and repairs corrupted Windows system files that might be interfering with the game's launch. Community Perspectives
: In some cases, the file might simply be missing from the game directory due to an incomplete installation. How to Fix Steam_api64.dll for WWE 2K15 1. Verify Integrity of Game Files (Recommended) Steam Api 64 Dll Wwe 2k15