In the context of the 2021 builds of x360ce (specifically the 4.x "All-In-One" versions), Error Code 4 typically relates to issues or Permissions .
Windows 10 and 11 have strict security protocols regarding applications that emulate hardware. Right-click your x360ce.exe file. Select . Go to the Compatibility tab. Check the box: "Run this program as an administrator." Click Apply and OK. 3. Clear the Virtual Devices self protection failed error code 4 x360ce 2021
Alex had the installer sitting in a folder already filled with other "modding" tools like MelonLoader . The files were tripping over each other, causing the protection to fail. How the Community Fixed the Error In the context of the 2021 builds of
files—common in online-fix scenarios—can trigger this failure. Common Fixes to Try Run as Administrator : Right-click your x360ce.exe Select
Appendix — Suggested Log Fields to Add (for maintainers)