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Some third-party antivirus (Avast, McAfee, Bitdefender) actively blocks x360ce's "self-protection" feature because it looks like ransomware behavior (a program trying to modify its own executables).
If the application is in a protected folder like C:\Program Files , move the entire x360ce folder to a non-restricted location (e.g., C:\x360ce ). 3. Resolve Software Conflicts
If you've tried all the above methods without success, work through this final checklist for more targeted fixes:
Alex right-clicked the x360ce.exe and selected "Run as Administrator" . Often, this was enough to give the program the "keys" it needed. self protection failed error code 4 x360ce 2021
Try an older version of x360ce (v3.2.10 or earlier) — the 2021 version has stricter self-protection checks. Some users report success with instead of the 2021 branch.
: Running the emulator in a folder containing other proxy loaders (like MelonLoader ) can trigger this error. Permission Issues
Close any frozen instances of x360ce via the ( Ctrl + Shift + Esc ). Right-click the x360ce.exe application file. Select Run as administrator from the context menu. Click Yes on the User Account Control (UAC) prompt. Resolve Software Conflicts If you've tried all the
Missing or damaged DLL files, specifically xinput1_3.dll .
If the error persists, your Antivirus might be "protecting" the system by killing the x360ce process. Go to . Select Manage settings and scroll down to Exclusions .
If you have placed the x360ce executable inside heavily protected system folders like C:\Program Files or C:\Program Files (x86) , Windows UAC (User Account Control) will continuously block its self-protection routines. Some users report success with instead of the 2021 branch
Open the Windows Start menu and type , then press Enter. Click on Virus & threat protection .
The (Xbox 360 Controller Emulator) is a vital tool for PC gamers, allowing non-XInput controllers to emulate an Xbox 360 controller, making them compatible with modern games. However, users frequently encounter a frustrating error, particularly when setting up emulator files or game fixes: "Self Protection Failed – ERROR CODE 4" .
Mitigation & Fixes (ordered, try in sequence)
Look for any "Hidden" or "Virtual" devices that are currently mapped.
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