Self Protection Failed Error Code 4 X360ce 2021 ((exclusive))

Report: “Self Protection Failed — Error Code 4” in x360ce (2021)

Summary

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

Visit the Microsoft support site and download the latest "All-in-One" redistributable package (2015-2022). 5. Add an Antivirus Exclusion Report: “Self Protection Failed — Error Code 4”

  1. Close Overlays: Disable Discord Overlay, NVIDIA GeForce Experience Overlay, or Steam Overlay. These often conflict with x360ce's hooking mechanism.
  2. Check Clean Boot: Try running the game in a "Clean Boot" state of Windows to see if a background service is blocking the driver.
  3. Version Compatibility: If you are using the older x360ce (3.x), try the newer "x360ce Architecture" (Virtual Bus Driver version) or vice versa. Error 4 often relates to the driver failing to load due to security policies.