2021 | Self Protection Failed Error Code 4 X360ce

Title: The Digital Shield: Understanding and Resolving the "Self Protection Failed Error Code 4" in x360ce (2021)

1. Run x360ce as Administrator

• Right-click x360ce.exe → Properties → Compatibility → Check Run this program as an administrator → Apply → OK.
• Also run your game as administrator.

Final Tip: After fixing the error and configuring your controller, always make a backup of x360ce.ini and the .dll files. If the error returns after a Windows Update, you can simply restore these files instead of reconfiguring your entire controller mapping. self protection failed error code 4 x360ce 2021

• In Controlled Folder Access, click "Allow an app through Controlled Folder Access" .
• Click "Add an allowed app" → "Recently blocked apps" – select x360ce.
• If not listed, click "Browse all apps" and navigate to your x360ce.exe file.

How to use this post:

1. Copy the text above.
2. Paste it into the forum or support channel.
3. Fill in the bracketed information (like your controller name and OS version).
4. Attach a screenshot of the error if possible, as it helps developers diagnose the issue faster.