iRacing: Easy Anti Cheat Problem (Workarounds)

How to fix it

1. Repair the Easy Anti‑Cheat installation

   • Open the iRacing installation folder.
   • Locate the EasyAntiCheat_EOS folder (usually C:\Program Files (x86)\EasyAntiCheat_EOS).
   • Run EasyAntiCheat_EOS.exe with the repair option (often labeled “Repair” or “Repair/Update”).
   • Let the tool finish and then try to start a race again.

2. Fully uninstall Easy Anti‑Cheat and reinstall it

   • Open a Command Prompt with administrator rights.
   • Navigate to the EasyAntiCheat_EOS directory:

     cd "C:\Program Files (x86)\EasyAntiCheat_EOS"
     

   • Execute the factory‑reset command:

     EasyAntiCheat_EOS.exe qa-factory-reset
     

   • Note the returned error level (the command will display a number).
   • After the reset, launch iRacing and let it reinstall Easy Anti‑Cheat automatically, or run the iRacing installer again and choose “Repair” to reinstall the anti‑cheat component.

3. Check for the krkb.sys driver

   • The error specifically mentions krkb.sys. This driver is often associated with third‑party software that can interfere with Easy Anti‑Cheat.
   • If you have any security, VPN, or hardware‑monitoring tools that might install a driver named krkb.sys, try disabling or uninstalling them temporarily, then restart the computer and launch iRacing.

If it still doesn't work

• Verify that no other anti‑cheat or security programs are running in the background (e.g., other game launchers, cheat‑prevention tools).
• Restart Windows in Safe Mode and attempt to launch iRacing; this can reveal whether a hidden driver is loading.
• Contact iRacing support with the exact error message and the error level returned by the qa-factory-reset command.
• Keep an eye on future iRacing updates; a later patch may address the krkb.sys conflict.