Most "missing DLL" issues are false positives. Your security software may have moved the file to a safe area. Windows Defender: Virus & threat protection Protection history . Look for any items blocked recently that mention steam-api64r.dll and select Third-Party AV:
After restoring the file, you must prevent your antivirus from deleting it again. To do this, add the entire Infinite Warfare installation folder as an exclusion or exception in your antivirus software. This tells the security program to ignore that specific folder, allowing your game to run without interference.
Running SFC is a good troubleshooting step for many Windows errors:
October 2024 Applies to: Windows 10, Windows 11, Steam Version call of duty infinite warfare steam-api64r.dll missing
This is by far the most common cause. Antivirus programs often flag steam_api64r.dll because it is a modified file that can behave similarly to known threats or "potentially unwanted programs" (PUPs). The software may quarantine or delete the file without warning, leading to the missing file error. This is more likely to happen with this DLL than with the standard steam_api64.dll due to its modified nature.
: Search for "Virus & threat protection" in your taskbar. View History : Select Protection History .
Because this specific .dll intercepts official Steam calls, antivirus software (including ) frequently flags it as a "false positive" and quarantines or deletes it. Most "missing DLL" issues are false positives
Safe, step‑by‑step fixes Follow these steps in order; stop when the issue is resolved.
Your antivirus software or Windows Defender may mistake the file for malware and quarantine it.
Pro Tip: Add the entire Call of Duty: Infinite Warfare folder to your antivirus exclusion list to prevent this from happening again. 2. Verify Integrity of Game Files (Steam) Look for any items blocked recently that mention
This is considered a last resort, as it may undo other recent system changes.
This guide provides a comprehensive breakdown of causes and effective solutions to get you back into the action. What Causes the steam-api64r.dll Error?
Disclaimer: Call of Duty: Infinite Warfare is a registered trademark of Activision Publishing, Inc. Steam is a trademark of Valve Corporation. This guide is for educational and troubleshooting purposes only.