4 Unable To Start There Was An Error Processing The Startup Configuration Script Exclusive | Sims

The error message "The Sims 4 is unable to start: There was an error processing the startup configuration script" often occurs when the game is blocked from accessing its user folder or when specific graphics configuration files are corrupted or misplaced. Primary Fix: Clear the ConfigOverride Folder

  • Restart your computer.
  • Launch The Sims 4. The game will create a new configuration file automatically.
    • Verified and repaired game files via the client.
    • Temporarily removed all custom content and mods.
    • Cleared caches (localthumbcache.package) and reset the Mods folder.
    • Ran the game as administrator and ensured Origin/EA app had necessary permissions.
    • Updated GPU drivers and Windows updates.
    • Reinstalled the game (partial improvement but not consistently reliable).

    Steam: Right-click The Sims 4 in your library, select Properties > Installed Files, and click Verify integrity of game files. 3. Clear the EA App Cache The error message " The Sims 4 is

    6) Disable antivirus / Controlled Folder Access

    • Why: Security tools can block exclusive file locks or execution of scripts.
    • How: Temporarily disable real-time protection and Windows Defender Controlled Folder Access (Settings → Privacy & security → Windows Security → Virus & threat protection → Manage ransomware protection). Test launch. If it works, add exceptions for the game and client.

    Run as Administrator: Right-click the EA App or Steam icon and select Run as Administrator to bypass permission issues. Advanced Troubleshooting Restart your computer

    1. Navigate to Documents\Electronic Arts\The Sims 4\
    2. Delete the following files (do not worry, the game will recreate them):