Log In
Start free trial

Self Protection Failed Error Code 4 X360ce 2021

Guide: Resolving Self Protection Failed Error Code 4 with x360ce in 2021

Introduction

The "Self Protection Failed Error Code 4" is a common issue encountered by users of the x360ce (Xbox 360 Controller Emulator) software, particularly in 2021. This error occurs when the emulator fails to initialize or run due to compatibility or configuration issues. In this guide, we will walk you through the steps to troubleshoot and resolve the Self Protection Failed Error Code 4 with x360ce. self protection failed error code 4 x360ce 2021

Causes of the Error

Before diving into the solutions, it's essential to understand the possible causes of the error: Guide: Resolving Self Protection Failed Error Code 4

  1. Outdated x360ce version: Using an older version of x360ce that is no longer compatible with your system or the game you're playing.
  2. Corrupted x360ce files: Damaged or corrupted files within the x360ce installation directory.
  3. Incompatible game: The game you're playing may not be compatible with x360ce or may require a specific configuration.
  4. Conflicting software: Other software or drivers may be interfering with x360ce.

Step-by-Step Solutions

3. Check for Missing DLLs or Permissions

  • Make sure xinput1_3.dll, xinput1_4.dll, etc., are not read-only in the game folder.
  • Run x360ce from inside the same folder as the game’s .exe (not from Desktop).

4. Manually Install or Reinstall x360ce Virtual Driver

  1. Open x360ce as admin
  2. Go to Settings tab → Driver section
  3. Click Uninstall Virtual Driver → Restart PC
  4. Run x360ce as admin again → Click Install Virtual Driver
  5. If it asks to replace or overwrite – choose Yes

8) Alternative approach: use ViGEm + community x360ce guide

  • Install the latest signed ViGEm Bus Driver separately from the ViGEm project repository.
  • Then install a current x360ce build with admin rights and allow it to use the installed ViGEm driver instead of attempting to install/pack its own driver.

6. Use 32-bit or 64-bit Correctly

  • If your game is 32-bit, use x360ce.exe (32-bit version)
  • If your game is 64-bit, use x360ce.x64.exe Using the wrong architecture can cause self-protection errors.

Solution 6: Disable Conflicting Software

  1. Close any other software or drivers that may be using the Xbox 360 controller (e.g., Xbox Accessories, controller drivers).
  2. Try running x360ce and the game again.

Solution 5: Check Game Compatibility

  1. Verify that the game you're playing is compatible with x360ce.
  2. Check the game's forums or documentation for specific x360ce configuration requirements.

Fix 4: Unblock the DLL Files (Zone Identifier)

When you download x360ce from the internet, Windows adds a "Mark of the Web" (Zone Identifier) that blocks DLL execution. Outdated x360ce version : Using an older version

  1. Right-click on x360ce.exe → Properties.
  2. Check the bottom of the General tab. If you see "Security: This file came from another computer" , check the Unblock box.
  3. Click Apply → OK.
  4. Repeat for any xinput*.dll files in the folder.

Why Did This Start Happening in 2021?

While the error existed earlier, it became rampant in 2021 due to three converging factors:

  1. Windows Security Enhancements: In 2021, Microsoft strengthened Controlled Folder Access (part of Windows Defender). This ransomware protection blocks untrusted programs from writing to critical folders (like Documents, Downloads, or game installation folders).
  2. Driver Signature Enforcement: Windows 10/11 updates increased kernel-level security, making it harder for x360ce’s virtual driver (ViGEm Bus Driver) to install cleanly.
  3. Corrupted User Profiles: Many legacy x360ce users had old .ini or .dll files from versions prior to 2020. These legacy files conflict with the new "self protection" logic.