StutterFix - CFG Manager for Games

A PowerShell utility to manage Control Flow Guard (CFG) settings for games to fix stuttering and performance issues on Windows.

🎮 What Does This Do?

Control Flow Guard (CFG) is a Windows security feature that can sometimes cause stuttering and performance issues in certain games. This tool provides a simple interface to disable or enable CFG for specific games without manually editing registry settings.

✨ Features

• Interactive Menu - Easy-to-use interface to manage CFG settings
• Batch Operations - Enable or disable CFG for all games at once
• Real-time Status - See which games have CFG enabled or disabled
• Custom Game List - Add your own games to the list
• Safe Management - Handles Windows registry safely with proper error handling

🚀 Quick Start

Prerequisites

• Windows 10/11
• PowerShell (comes pre-installed on Windows)
• Administrator privileges (required to modify system settings)

Installation

1. Download or clone this repository
2. Extract the files to a folder
3. Add your game executables to GameList.txt (one per line)

Usage

1. Right-click FixStutter.ps1 and select Run with PowerShell
   • Or run from PowerShell: .\FixStutter.ps1
2. The script will automatically request Administrator privileges
3. Use the interactive menu to:
   • Toggle CFG for individual games (press the game's number)
   • Disable CFG for all games (press D)
   • Enable CFG for all games (press A)
   • Refresh the status (press R)
   • Exit (press Q)

📝 Adding Games

Edit GameList.txt and add the executable name of your game (one per line):

PioneerGame.exe                      # ARC Raiders
Discovery.exe                        # THE FINALS
Marvel-Win64-Shipping.exe            # Marvel Rivals
YourGame.exe                         # Your Game Name

Note: Only include the executable name (e.g., game.exe), not the full path.

📋 Included Games

The default GameList.txt includes:

• ARC Raiders
• THE FINALS
• Firefighting Simulator: Ignite
• Marvel Rivals
• Ready or Not
• Genshin Impact
• Dead by Daylight

🎯 How It Works

When CFG is disabled for a game:

• The script uses PowerShell's Set-ProcessMitigation cmdlet to modify Windows security settings
• CFG is disabled only for specific game executables, not system-wide
• Changes persist across reboots

When CFG is enabled (re-enabled):

• The script removes the registry entries that disable CFG
• The game returns to Windows default security settings

⚠️ Important Notes

• Administrator privileges are required - The script modifies system-level security settings
• Backup recommended - Consider creating a system restore point before using
• Security implications - Disabling CFG reduces security protections for those specific executables
• Results may vary - CFG isn't the cause of stuttering for all games; effectiveness depends on the specific game

🔧 Troubleshooting

Script won't run

• Right-click FixStutter.ps1 → Properties → Check Unblock if present
• Run PowerShell as Administrator and execute: Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

Changes don't take effect

• Make sure you're using the exact executable name from Task Manager
• Restart the game after making changes
• Verify the script ran with Administrator privileges (check the window title)

Game not listed

1. Open Task Manager while the game is running
2. Find the game's process name (e.g., game.exe)
3. Add that name to GameList.txt
4. Press R in the script to refresh

🛡️ Security Considerations

Disabling Control Flow Guard reduces security protections for the affected executables. Only disable CFG for:

• Trusted games and applications
• Programs where you're experiencing performance issues
• Software from reputable sources

Re-enable CFG when you're done testing or if you're not experiencing stuttering.

📄 License

This project is provided as-is for personal use. Use at your own risk.

🤝 Contributing

Feel free to:

• Add more games to the default list
• Report issues or bugs
• Suggest improvements
• Submit pull requests

💡 Tips

• Test one game at a time to see if disabling CFG helps
• Monitor performance with tools like MSI Afterburner
• Re-enable CFG if you don't notice improvement
• Keep your game list organized with comments (using #)

⚡ Performance Impact

Disabling CFG may help with:

• Micro-stuttering
• Frame pacing issues
• Input lag in some games
• FPS drops during intensive scenes

Results vary by game and system configuration.

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Made with ❤️ for smoother gaming