The "Self protection failed error code 4" in x360ce 2021 is rarely a sign of broken hardware. Instead, it is a symptom of modern Windows security blocking the intrusive methods needed to emulate a controller. Running the program as an administrator, ensuring your ViGEmBus drivers are clean, and setting up proper antivirus exclusions will fix the issue for nearly all setups.
I have designed this to be posted on forums like the , Reddit , or Steam Discussions .
To understand the error, one must first understand the mechanism of x360ce. The software works by intercepting inputs from a physical controller and translating them into a format that the game engine recognizes as coming from a legitimate Xbox 360 device. This is achieved through the use of Dynamic Link Libraries (DLLs)—specifically xinput1_3.dll or xinput9_1_0.dll —which are placed into the game’s directory. self protection failed error code 4 x360ce 2021
How to Fix the "Self Protection Failed Error Code 4" in x360ce (2021/2022 Version)
How to Fix "Self Protection Failed Error Code 4" in x360ce (2021/Updated) The "Self protection failed error code 4" in
Windows Defender or third-party antivirus software flags x360ce as a false positive due to its injection techniques.
Open the x360ce app (ignore the error for a moment if it lets you access the UI). Go to the or Issues tab. I have designed this to be posted on
If you have x360ce sitting in your C:\Program Files , C:\Windows , or directly in a protected game directory, Windows will block its self-protection scripts.