Failed Error Code 4 X360ce 2021 — Self Protection

: The program lacks the necessary administrative rights to modify system-level input hooks.

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.

While Error Code 4 can be a frustrating barrier for gamers using older controllers, it is rarely a terminal issue. By systematically addressing permissions and security conflicts, most users can restore full functionality to their emulation software. Fix self-protection failed. Error code: 4

Because x360ce hooks into system-level hardware inputs, security software often blocks its "Self Protection" routines. self protection failed error code 4 x360ce 2021

blocks the application's memory write requests.

Try an older version (x360ce 4.10.x) or use a different wrapper like xOutput or DS4Windows .

Windows has built-in security mitigations that block apps from executing certain self-protection routines. Open . Click on App & browser control . : The program lacks the necessary administrative rights

Once you have fixed x360ce, follow these best practices to never see Error Code 4 again:

Windows Defender or a third-party antivirus saw x360ce trying to "inject" code into a game and thought it was an attack, blocking the self-protection service.

Many users ask: "If Error Code 4 is so common, why doesn't the developer just fix it?" The irony is that the error is a to protect your PC from malicious programs that try to replace x360ce with infected versions. The developer prioritizes your system's safety over convenience. Therefore, the "fix" must come from your operating system's permissions and antivirus settings. Select Run as administrator from the context menu

Here’s a step-by-step guide to fix the in x360ce (2021 version) .

Last updated: 2025. This guide applies to x360ce versions 4.10 – 4.17 and Windows 10/11.

Follow these troubleshooting methods in order to resolve the issue. 1. Run x360ce with Administrator Privileges