This error typically occurs because the configuration file that stores your graphics and gameplay settings has become corrupted. Deleting it forces the game to generate a fresh, clean file.
Steps:
Options.ini.Options.ini file.
The error message is intimidating, but the solution is almost always about one program holding a file hostage. Start with the easiest fix (Task Manager + OneDrive pause), escalate to mod testing, and only touch the registry as a final step.
In 95% of reported cases, simply deleting the Config folder inside Documents\Electronic Arts\The Sims 4 and disabling real-time antivirus resolves the "exclusive access" problem instantly.
If you are still stuck after all these steps, visit the official EA Answers HQ or the Sims After Dark Discord, and attach your lastException.txt file from Documents\Electronic Arts\The Sims 4. Do not reinstall Windows for this error—it is almost never an OS issue, but a file permission or rogue process issue.
Now, go build that dream home. Your save file is waiting.
The error "Unable to start: There was an error processing the startup configuration script" in The Sims 4
typically occurs when the game is blocked from accessing its user folder or when specific configuration files are corrupted or misplaced. Quick Fixes
Check the ConfigOverride Folder: If you have any files in Documents > Electronic Arts > The Sims 4 > ConfigOverride, delete them. Users have reported that removing these files, particularly GraphicsRules.sgr, often resolves the issue immediately. This error typically occurs because the configuration file
Repair the Game: Open the EA App, go to your library, click the three dots on the Sims 4 icon, and select Repair.
Clean User Folder: Move your entire "The Sims 4" folder from Documents > Electronic Arts to your desktop. Launch the game to see if it starts; if it does, a new clean folder will be created, and you can slowly move your saves back. Technical Troubleshooting If quick fixes do not work, try these structured steps: Very Frustrated-Error processing | EA Forums - 11844103
How to Fix The Sims 4 "Unable to Start: Error Processing Startup Configuration Script"
Seeing the error message "Unable to start: there was an error processing the startup configuration script exclusive" can be a major roadblock for
players. This issue typically occurs when the game fails to load essential configuration files—often due to corrupted data, outdated graphics rules, or conflicting mods.
Follow these troubleshooting steps to get your game back up and running. 1. Clear the ConfigOverride Folder (Common Fix)
Many players encounter this error after game updates because of files left in the ConfigOverride folder. Navigate to Documents > Electronic Arts > The Sims 4. Find the folder named ConfigOverride.
Move any files inside (like GraphicsRules.sgr or GraphicsCards.sgr) to your desktop or delete them. Locate the file named Options
Why this works: The game may be trying to use outdated graphical instructions that are no longer compatible with the current version. 2. Repair Game Files via the EA App or Steam
If a configuration script is missing or corrupted, a "Repair" will redownload the necessary files.
EA App: Open your Library, click the three dots on The Sims 4 tile, and select Repair.
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
Sometimes the platform itself (not the game) is the culprit. Open the EA App. Click the three horizontal lines in the top-left corner. Select Help > App Recovery and then click Clear Cache. 4. Perform a "Clean" Folder Reset If the error persists, test if your user data is corrupted. Go to Documents > Electronic Arts.
Rename your The Sims 4 folder to something like The Sims 4_Old.
Launch the game. The game will create a fresh, empty folder.
If the game starts successfully, you can slowly move your Saves and Tray (library items) folders back into the new directory. 5. Check Your Graphics Drivers Restart your computer
An "exclusive" script error can sometimes be tied to the game's inability to communicate with your graphics hardware.
Ensure your graphics drivers are up to date via the NVIDIA GeForce Experience or AMD Software portals.
Some technical users have found success by performing a clean reinstall of drivers using Display Driver Uninstaller (DDU). 6. Temporarily Remove Mods Sims 4 Won't Open or Load - Expert Solutions - JustAnswer
The "exclusive" lock error often happens if the game can’t write to the config file because of permission restrictions.
Perform these steps in order. Test the game after each one.
If you recently updated your graphics drivers, Sims 4 might be trying to use an "exclusive" GPU command that your new driver rejects. The game keeps a GraphicsCards.sgr and GraphicsRules.sgr file.
Reset your GPU config: