: For Steam games, try disabling "Steam Input" in the game’s controller settings to avoid conflicts between Steam's native support and x360ce. Are you seeing this error with a specific game , or does it happen as soon as you launch the x360ce executable How to Fix Self Protection Failed Error Code 4 - AI Bud
: If you are using an online-fix for multiplayer, try replacing your OnlineFix.ini self protection failed error code 4 x360ce 2021
Right-click x360ce.exe (and your game's launcher) and select . : For Steam games, try disabling "Steam Input"