This is the safest and most stable way to get the HD Project running. Enjoy the game
Antivirus (especially Avast, AVG, Bitdefender, or Windows Defender) frequently flags steam_api.dll as a false positive. resident evil 4 hd error steamapidll best
If you verified the files and excluded the folder but still get the error, the mod installation likely got corrupted. This is the safest and most stable way