Find steam-api.dll . If it's there, note the location. If not, repeat Step 4 (verify files).
This is the most common cause. Antivirus programs often trigger a "false positive" on DLL files associated with Steam. Open your antivirus (or Windows Security Protection History Quarantine Look for a file named steam_api.dll steam_api64.dll Select the file and choose Allow on device steam-api.dll missing resident evil 4
Open the antivirus interface → Quarantine/Chess → Restore the file. Then add the entire Steam common folder as an exception. Find steam-api
Downloading DLLs from random websites is risky; prefer Steam’s verify or official patches. Find steam-api.dll . If it's there
"The program can't start because steam-api.dll is missing from your computer."