🎮 Game Error Codes What it means & how to fix it

Easy Anti-Cheat Error Codes

Easy Anti-Cheat is a kernel-level driver many games load before they start, so its errors block launch across every title that uses it. Almost all of them are a corrupt EAC install, a missing service, or antivirus interference — here's each code and the fix.

Error codes

EAC Launch Error / failed to start The game closed before the menu because EAC didn't start

Cause: The Easy Anti-Cheat service isn't installed or can't start its driver — usually after a Windows update or an AV quarantine.

Fix:
  1. Go to the game's install folder › EasyAntiCheat › run EasyAntiCheat_Setup.exe › Repair.
  2. Run the game as administrator.
  3. Whitelist the EasyAntiCheat folder in your antivirus.
20006 Easy Anti-Cheat couldn't verify the game's integrity

Cause: A modified or corrupt game file, or a mismatched EAC module after a patch.

Fix:
  1. Verify/repair the game files through Steam or Epic.
  2. Repair EAC via EasyAntiCheat_Setup.exe.
  3. Remove any mods or file tweaks for online play.
30005 (CreateFile FACEIT.sys / EasyAntiCheat.sys failed) EAC's driver file couldn't be created or loaded

Cause: Antivirus blocking the .sys driver, or a leftover FACEIT/EAC driver conflicting.

Fix:
  1. Add an antivirus exception for EasyAntiCheat.sys and the game folder, then reboot.
  2. Uninstall FACEIT AC if you don't use it.
  3. Reinstall EAC via the Setup › Repair option.
10011 EAC service failed to install or is corrupt

Cause: A broken Easy Anti-Cheat Windows service.

Fix:
  1. Run EasyAntiCheat_Setup.exe › Uninstall, then Install again.
  2. Reboot so the new service registers.
  3. Run the installer as administrator.
Untrusted system file (e.g. dxgi.dll / a .dll) EAC blocked a modified system DLL

Cause: A replaced or injected Windows/graphics DLL — often from an overlay, a 'reshade'/mod, or malware.

Fix:
  1. Remove third-party overlays and reshade/mod DLLs from the game and System32.
  2. Run System File Checker: sfc /scannow in admin Command Prompt.
  3. Update the GPU driver so the legitimate DLL replaces the flagged one.
Disconnected: you have been kicked by anti-cheat EAC dropped you mid-match

Cause: An overlay, a blocked file, or an unstable connection tripping the anti-cheat.

Fix:
  1. Close overlays (Discord, MSI Afterburner, RivaTuner, Razer) before playing.
  2. Repair EAC and verify game files.
  3. Update Windows — outdated builds are increasingly rejected.
Install failed / EasyAntiCheat_Setup.exe won't run The EAC installer errors out

Cause: Insufficient permissions or antivirus locking the installer.

Fix:
  1. Right-click the setup › Run as administrator.
  2. Temporarily disable real-time AV during the install.
  3. Reboot and retry; make sure Windows isn't mid-update.

Fixes that work for most Easy Anti-Cheat (EAC) errors

  1. Reboot the PC first — anti-cheat drivers load at startup, and a stale session or pending Windows update causes most launch-blocking errors.
  2. Run the game AND its launcher as administrator so the anti-cheat service can install and start its kernel driver.
  3. Verify/repair the game files (Steam: Verify integrity; Epic: Verify) so a corrupt or half-updated anti-cheat module is re-downloaded.
  4. Add the game folder and the anti-cheat executable as exceptions in your antivirus/firewall — third-party AV frequently quarantines the anti-cheat driver.
  5. Update Windows and your GPU driver; anti-cheat blocks known-vulnerable or outdated system components.

FAQ

How do I fix an Easy Anti-Cheat launch error?

Open your game's install folder, go into the EasyAntiCheat subfolder and run EasyAntiCheat_Setup.exe, then choose Repair (or Uninstall then Install). Reboot, run the game as administrator, and whitelist the EasyAntiCheat folder in your antivirus. This clears the large majority of EAC launch and service errors.

Why does Easy Anti-Cheat say 'untrusted system file'?

EAC detected a modified system or graphics DLL, usually from an overlay, a reshade/mod, or corrupted Windows files. Remove third-party overlays and injected DLLs, run sfc /scannow to repair Windows files, and update your GPU driver so the legitimate DLL is restored.

Other games