This error, notorious among users since 2021, can turn a simple controller setup into a tech nightmare. Why does this happen? Is your antivirus blocking it? Is your controller broken? Is the file corrupted?
After fixing the error and configuring your controller, always make a backup of x360ce.ini and the .dll files. If the error returns after a Windows Update, you can simply restore these files instead of reconfiguring your entire controller mapping. Last updated: 2025. This guide applies to x360ce versions 4.10 – 4.17 and Windows 10/11. self protection failed error code 4 x360ce 2021
If you are trying to use x360ce (the popular Xbox 360 controller emulator) to make your non-standard gamepad work in modern PC games, you have likely encountered a frustrating roadblock. You set everything up, run the application as Administrator, and suddenly—a red error message appears: This error, notorious among users since 2021, can