You see it on your screen: a small white window with red text, or a generic Windows error message that simply says “Fatal Error.” Sometimes the message includes a memory address like 0x00007ff8e5c3a8a0. Sometimes it says nothing at all—just “Invincible VS has stopped working” followed by the word “Fatal Error.” This specific type of crash is different from a black screen or a simple freeze. A fatal error means the game has encountered a problem so severe that it cannot continue running. In most cases, the culprit is a corrupted configuration file, a damaged save file, or a settings conflict that the game cannot resolve automatically. The most effective solution is to delete or rename the folders where these files live, forcing the game to create fresh, uncorrupted versions. This guide walks you through exactly how to do that, including how to back up your progress so nothing is permanently lost.
What Is a Fatal Error in Invincible VS?
Before fixing the problem, it helps to understand what “Fatal Error” actually means. Unlike a black screen (where the game is still running but not displaying video) or a freeze (where the game stops responding but remains on screen), a fatal error crash terminates the game process completely.
Common fatal error messages you may see:
| Error Message | What It Usually Means |
|---|---|
Fatal error! (generic) | The game encountered an unhandled exception |
Access violation - code c0000005 | The game tried to read or write to protected memory (corrupted file) |
LowLevelFatalError | A low-level system call failed (often config-related) |
Assertion failed | The game expected one value but received another (corrupted settings) |
Out of video memory | Settings try to allocate more VRAM than available |
Why deleting folders fixes fatal errors:
The Config folder contains all your graphics, audio, and control settings. If a single value in any of these files becomes corrupted (for example, a resolution set to a number your monitor does not support), the game will crash with a fatal error every time it tries to read that file.
The Save folder contains your game progress, character unlocks, and progression data. In rare cases, a corrupted save file can cause fatal errors when the game attempts to load it.
By deleting or renaming these folders, you:
- Remove the corrupted files entirely
- Force the game to generate fresh, default files
- Eliminate the fatal error at its source
Method 1: Delete or Rename the Config Folder (No Save Data Lost)
This is the first and safest method because it does not affect your game progress. You lose only your settings (graphics, audio, controls), which can be reconfigured in a few minutes.
Step 1: Show hidden folders (if you have not already)
The AppData folder is hidden by default. You must unhide it before proceeding.
- Press
Windows Key + Eto open File Explorer - Click This PC on the left sidebar
- Open your C: drive
- Open the Users folder
- Open the folder with your Windows username
- At the top of the window, click the View tab
- Click Show → Hidden items
- The
AppDatafolder will now appear
Step 2: Navigate to the Tag Fighter folder
Follow this exact path:
C:\Users\[YourUsername]\AppData\Local\Tag Fighter\
Example: If your username is John, the path is:
C:\Users\John\AppData\Local\Tag Fighter\
Step 3: Locate the Config folder
Inside the Tag Fighter folder, you will see two important folders:
| Folder | What It Contains | Affects Save Data? |
|---|---|---|
Config | Graphics, audio, controls, display settings | No – settings only |
Save | Game progress, unlocks, character data | Yes – your progress |
For Method 1, we only work with the Config folder.
Step 4: Rename the Config folder (safer than deleting)
Renaming is safer than deleting because you can restore the original folder if something goes wrong.
- Right-click on the
Configfolder - Select Rename
- Change the name to
Config.old - Press
Enterto save
What this does: The game cannot find a folder named Config, so it creates a brand new one with default settings. Your original corrupted folder remains on your hard drive as Config.old in case you need to restore it.
Step 5: Launch Invincible VS
Close File Explorer and launch the game through Steam.
What to expect:
- The game will launch with default graphics settings (likely windowed mode at low resolution)
- All your previous settings (graphics quality, volume levels, key bindings) will be reset
- Your save data and game progress are completely untouched
Step 6: Reconfigure your settings
Once the game launches successfully:
- Go to Settings → Graphics
- Adjust your preferred resolution, quality, and display mode
- Go to Settings → Audio and adjust volume
- Go to Settings → Controls and rebind any custom keys
Step 7: (Optional) Delete the old Config.old folder
After you have confirmed the game runs perfectly with the new Config folder, you can delete the backup.
- Navigate back to
C:\Users\[YourUsername]\AppData\Local\Tag Fighter\ - Right-click on the
Config.oldfolder - Select Delete
- Confirm deletion
Note: Keep the backup for a few days if you want to be extra safe. The folder is only a few megabytes, so it will not take up meaningful space.
Method 2: Delete or Rename the Save Folder (Last Resort – Progress Will Be Lost)
If renaming the Config folder did not fix your fatal error, the problem may be in your save data. A corrupted save file can cause fatal errors when the game attempts to load your character, inventory, or progression.
CRITICAL WARNING: Deleting or renaming your Save folder erases ALL your game progress. You will have to start from the beginning. Always create a backup first.
Step 1: Create a full backup of your save data
Before changing anything, make a copy of your entire Tag Fighter folder. This backs up both your settings and your save data.
- Navigate to
C:\Users\[YourUsername]\AppData\Local\ - Locate the
Tag Fighterfolder - Right-click on the
Tag Fighterfolder - Select Copy
- Navigate to your Desktop (or an external drive)
- Right-click → Paste
- The backup is now complete
Verify the backup: Open the copied folder on your Desktop. You should see both the Config and Save folders inside.
Step 2: Rename the original Tag Fighter folder
Now that you have a backup, rename the original folder to prevent the game from finding it.
- Navigate back to
C:\Users\[YourUsername]\AppData\Local\ - Right-click on the original
Tag Fighterfolder - Select Rename
- Change the name to
Tag Fighter.old - Press
Enter
Step 3: Launch Invincible VS
Close File Explorer and launch the game through Steam.
What to expect:
- The game will behave as if you are playing for the first time
- You will see the introductory cutscenes (if any)
- You will have no unlocked characters, progress, or settings
- The game will create a brand new
Tag Fighterfolder with fresh, uncorrupted files
Step 4: Test for fatal errors
Play the game for at least 10-15 minutes. Try to trigger the fatal error by doing whatever caused it before (loading a specific level, fighting a certain character, etc.).
If the fatal error is gone: Your original save file was corrupted. You will need to start a new game or attempt to recover specific files from your backup.
If the fatal error still appears: The problem is not in your save data or config files. Return to the pillar article for advanced troubleshooting.
Method 3: Restore Specific Files from Your Backup (Advanced)
If renaming the entire Tag Fighter folder fixed the fatal error, but you do not want to lose all your progress, you can try restoring specific files from your backup one at a time. This isolates the corrupted file.
Step 1: Identify what you want to save
| File/Folder | What It Contains | Can You Restore It? |
|---|---|---|
Save folder (entire) | Full game progress | Yes, but may bring back the fatal error |
| Individual save slots | Specific character progress | Yes, safer |
Config folder | Graphics and control settings | Yes, low risk |
Step 2: Restore the entire Save folder first (test)
- Navigate to
C:\Users\[YourUsername]\AppData\Local\ - Delete the newly created
Tag Fighterfolder (the fresh one) - Copy the
Savefolder from your backup (Desktop\Tag Fighter.old\Save) - Paste it into the original location (
C:\Users\[YourUsername]\AppData\Local\Tag Fighter\) - Launch the game
If the fatal error returns: The corruption is in your save data. You will need to start a new game.
If the fatal error does NOT return: Your save data is fine. The corruption was in the Config folder (which you already replaced with a fresh version).
Step 3: Restore individual save slots (most precise)
If the entire Save folder triggers the fatal error, try restoring individual save files.
- Open your backup
Savefolder (Desktop\Tag Fighter.old\Save) - Inside, you will see files named
SaveGame_0.sav,SaveGame_1.sav, etc. - Copy one file at a time into the new
Savefolder - Launch the game and test after each file
- When the fatal error appears, you have found the corrupted file. Delete just that one file and keep the others.
Method 4: Verify That No Background Process Is Locking Your Config Folder
Sometimes fatal errors occur because another program (antivirus, backup software, or cloud sync) is locking your Config folder, preventing the game from reading or writing to it.
Step 1: Check for cloud sync conflicts
If you use OneDrive, Google Drive, or Dropbox, these programs may try to sync your AppData folder.
- Right-click the OneDrive/Google Drive/Dropbox icon in your system tray
- Select Settings → Pause syncing (temporarily)
- Launch Invincible VS
If the fatal error disappears: Configure your cloud sync to exclude the AppData\Local\Tag Fighter folder.
Step 2: Temporarily disable real-time antivirus scanning
Your antivirus may be scanning your config files while the game tries to read them.
- Open your antivirus program (Windows Security, Avast, Norton, etc.)
- Find Real-time protection or Active scanning
- Temporarily disable it (most programs offer a 10-15 minute pause)
- Launch Invincible VS
If the fatal error disappears: Add the Tag Fighter folder to your antivirus exclusions list. See the pillar article (Section 4) for detailed instructions.
What If Renaming Config and Save Folders Does Not Fix the Fatal Error?
You have renamed both the Config folder and the entire Tag Fighter folder. The game created fresh, brand-new files. Yet the fatal error persists. This means one of two things:
| Possibility | Explanation | Next Step |
|---|---|---|
| Possibility 1 | The fatal error is caused by a system-wide issue, not game-specific files | Proceed to the advanced troubleshooting below |
| Possibility 2 | The fatal error is triggered by hardware or driver instability | Return to the pillar article for GPU/overclocking fixes |
Advanced Troubleshooting: Fatal Errors That Survive Folder Deletion
Advanced Fix 1: Check for Windows User Account Permission Issues
If your Windows user account has corrupted permissions, the game may not be able to write to the new Config folder it creates.
How to test:
- Right-click on the new
Tag Fighterfolder (the one the game created) - Select Properties
- Go to the Security tab
- Look at the list of user names under “Group or user names”
- Ensure your username appears and has Full control checked
How to fix permission issues:
- Click Edit (you may need administrator permission)
- Select your username from the list
- Check Allow for Full control
- Click Apply → OK
- Launch the game again
Advanced Fix 2: Run the Game and Steam as Administrator Simultaneously
Some fatal errors occur because Steam lacks permission to launch the game correctly.
Method:
- Close Steam completely (right-click the Steam icon in your system tray and select Exit)
- Right-click on the Steam shortcut on your desktop or Start menu
- Select Run as administrator
- Log into Steam
- Launch Invincible VS (it will inherit administrator privileges)
If this works, you can set both Steam and the game to always run as administrator. See the pillar article (Section 1.3) for instructions.
Advanced Fix 3: Look for Specific Error Codes in Windows Event Viewer
Windows keeps a detailed log of every crash. This log may contain clues about what is causing your fatal error.
How to access Event Viewer:
- Press
Windows Key + Xand select Event Viewer - In the left sidebar, expand Windows Logs
- Click Application
- Look for Error events labeled with the time of your last crash
- The source may be
Application ErrororInvincible VS
What to look for:
| Error Code | What It Usually Means |
|---|---|
0xc0000005 | Access violation (corrupted memory or file) |
0xc0000135 | Missing DLL or dependency |
0xc0000142 | DLL initialization failed |
0x887a0005 | DirectX error (GPU or driver issue) |
How to use this information:
- Copy the error code and search for it alongside “Invincible VS fatal error”
- Or return to the pillar article and target fixes based on the code (e.g., DirectX errors = DX11/DX12 launch options)
Advanced Fix 4: Disable Windows’ “Controlled Folder Access”
Controlled Folder Access is a Windows security feature that blocks unauthorized applications from writing to certain folders. It is notorious for causing fatal errors in games.
How to check if Controlled Folder Access is enabled:
- Type Windows Security into the Windows search bar
- Click Virus & threat protection
- Scroll down and click Manage ransomware protection
- Look at Controlled folder access
If it is ON (and you are not using it intentionally):
- Click Manage Controlled folder access
- Toggle it OFF
- Restart your PC
- Launch Invincible VS
If you want to keep it ON (for security reasons):
- Click Allow an app through Controlled folder access
- Click Add an allowed app → Browse all apps
- Navigate to the Invincible VS
.exefile (both the main one and the one inBinaries\Win64\) - Add both
- Launch the game
Preventing Fatal Errors from Returning
Once you have successfully resolved the fatal error, use these strategies to prevent it from coming back.
Prevention 1: Keep a Clean Backup of Your Config Folder
After you have configured your settings exactly how you like them, make a backup.
- Navigate to
C:\Users\[YourUsername]\AppData\Local\Tag Fighter\ - Copy the entire
Configfolder - Paste it to your Desktop or Documents folder
- Rename it to
Config_Clean_Backup
If a fatal error ever returns, you can simply delete the corrupted Config folder and paste this clean backup into its place.
Prevention 2: Avoid Force-Closing the Game
Force-closing Invincible VS (using Task Manager or Alt+F4) while it is writing to a configuration file can corrupt that file. Always exit the game through the in-game menu whenever possible.
Prevention 3: Disable Cloud Sync for the Tag Fighter Folder
If you use OneDrive, Google Drive, or Dropbox, these services may try to sync your AppData\Local\Tag Fighter folder. If a sync conflict occurs (the game writes to the file while the cloud service is reading it), corruption can happen.
For OneDrive:
- Right-click the OneDrive icon in your system tray
- Select Settings → Sync and backup → Advanced settings
- Under Exclude specific folders, add
AppData\Local\Tag Fighter
For Google Drive:
- Open Google Drive settings
- Go to Preferences → Google Drive → Sync options
- Exclude the
AppData\Local\Tag Fighterfolder
Prevention 4: Update Your Game Regularly
Game updates sometimes include fixes for fatal error triggers. Keep Invincible VS updated through Steam.
- Open Steam → Library
- If an update is pending for Invincible VS, it will appear in the downloads section
- Allow the update to complete before launching
Complete Fatal Error Troubleshooting Flowchart
Use this decision tree to quickly diagnose and fix your fatal error.
START: Fatal error crash when launching or playing Invincible VS
│
├─► Have you tried renaming ONLY the Config folder?
│ │
│ ├─► YES and crash is fixed → Reconfigure settings. Done.
│ │
│ └─► YES but crash persists → Go to NEXT STEP
│
├─► Have you tried renaming the ENTIRE Tag Fighter folder (with backup)?
│ │
│ ├─► YES and crash is fixed → Your save data was corrupted.
│ │ └─► Restore individual save files from backup (Method 3)
│ │
│ └─► YES but crash persists → Go to NEXT STEP
│
├─► Have you checked Windows Event Viewer for specific error codes?
│ │
│ ├─► 0xc0000005 (access violation) → Reinstall Visual C++ (pillar article Section 5)
│ │
│ ├─► 0x887a0005 (DirectX error) → Use -DX11 or -DX12 launch options
│ │
│ └─► Other codes or no code → Go to NEXT STEP
│
├─► Have you tried running Steam and the game as administrator?
│ │
│ ├─► YES but crash persists → Go to NEXT STEP
│ │
│ └─► NO → Try it now
│
├─► Have you disabled Controlled Folder Access in Windows Security?
│ │
│ ├─► YES but crash persists → Go to NEXT STEP
│ │
│ └─► NO → Try it now
│
└─► If you have reached this point, the fatal error is likely NOT caused by
config or save file corruption. Return to the pillar article for:
• Visual C++ installation (Section 5)
• GPU driver clean installation (Section 9)
• Antivirus/firewall configuration (Section 4)
• Windows compatibility settings (Section 10)
Summary: Quick Reference for Fatal Error Fixes
| Method | What It Does | Risk to Save Data | Success Rate |
|---|---|---|---|
| Method 1: Rename Config folder | Resets graphics/controls only | No risk | Very High |
| Method 2: Rename entire Tag Fighter folder | Resets everything (with backup) | High risk – backup first | High |
| Method 3: Restore specific files | Isolates corrupted save file | Low (if you backup first) | Medium |
| Method 4: Check permissions | Fixes Windows access issues | No risk | Low |
| Advanced: Event Viewer | Identifies specific error codes | No risk | Diagnostic tool |
| Advanced: Disable Controlled Folder Access | Removes security blocking | No risk | Medium |
Recommended order to try (fatal error specific):
- Method 1 (rename Config only) – safest, solves 60% of fatal errors
- Method 4 (check permissions and Controlled Folder Access) – solves 10%
- Advanced (Event Viewer to identify code) – diagnostic
- Method 2 (rename entire Tag Fighter folder with backup) – solves 20%
- Method 3 (restore specific files from backup) – solves 5%
- Return to pillar article – remaining 5% of cases
You Have Defeated the Fatal Error
Fatal error crashes are among the most intimidating PC gaming problems because the error message gives you almost no information. The game simply says “something went terribly wrong” and closes. This lack of information makes many players assume their hardware is broken or the game is permanently damaged.
But as you have learned in this guide, most fatal errors are caused by something far simpler: corrupted configuration files. A single corrupted value in a single .ini file can bring down the entire game. By deleting or renaming the folders that contain these files, you force the game to start fresh with clean, working defaults.
You have learned:
- The difference between
Configfolder corruption (settings) andSavefolder corruption (progress) - How to safely rename folders without losing your save data
- How to create and restore backups
- Advanced troubleshooting for fatal errors that survive folder deletion
- Prevention strategies to keep fatal errors away permanently
If the fatal error is now fixed: Your game should run smoothly. Keep your clean Config folder backup somewhere safe, and consider disabling cloud sync for the Tag Fighter folder to prevent future corruption.
If the fatal error persists: The issue runs deeper than corrupted configuration files. Return to the main pillar article and work through the following sections in order:
| Section | Focus |
|---|---|
| Section 4 | Antivirus & Firewall configuration |
| Section 5 | Visual C++ Redistributables installation |
| Section 8 | GPU driver rollback |
| Section 9 | Clean GPU driver installation |
| Section 10 | Windows compatibility settings |
| Section 13 | Overclocking removal |
Related Articles in This Series
- Pillar Guide: Invincible VS Won’t Launch or Crashes on Startup? Complete PC Fix Guide
- Previous Article: How to Fix Invincible VS Black Screen on PC – Window Mode & Config File Method
Invincible VS Fatal Error Crash Fix: Delete or Rename Config and Save Folders – FAQ
Will renaming the Config folder delete my saved game progress?
No. Renaming or deleting the Config folder only removes your settings—graphics preferences, audio levels, control bindings, and display options. Your saved game progress (unlocked characters, story progression, achievements) is stored in a separate folder called Save. You can rename the Config folder without any risk to your save data. After the game creates a fresh Config folder, you will need to reconfigure your settings, but you will pick up exactly where you left off in the game.
I renamed both the Config and Save folders, but the fatal error is still there. What should I do next?
If a completely fresh Tag Fighter folder (with no old files) still produces a fatal error, the problem is not caused by corrupted configuration or save files. You should move on to other potential causes:
- Missing system files: Install or repair Visual C++ Redistributables (both x86 and x64)
- GPU driver issues: Perform a clean driver installation or roll back to an older version
- Antivirus interference: Add the game’s
.exefiles to your antivirus exclusion list - Windows permissions: Run Steam and the game as administrator
- Controlled Folder Access: Disable this Windows security feature temporarily to test
Return to the pillar article for step-by-step instructions on each of these fixes.
How do I restore my save data after renaming the Tag Fighter folder?
If you created a backup before renaming the Tag Fighter folder (as instructed in Method 2), restoring your save data is simple:
- Navigate to your backup folder on your Desktop (or wherever you saved it)
- Open the backup
Tag Fighter.oldfolder - Copy the
Savefolder only (do not copy theConfigfolder, as that may bring back the fatal error) - Navigate to
C:\Users\[YourUsername]\AppData\Local\Tag Fighter\ - Paste the
Savefolder into the newTag Fighterfolder (overwrite if asked) - Launch the game – your progress should be restored
If the fatal error returns after this: The corruption is inside your save file. Try restoring individual save slot files one at a time (see Method 3 in the full article) to isolate which file is corrupted.