How to Fix Critical Error Occurred Valorant

This guide walks you through the most effective fixes for the “Critical Error Occurred� message in Valorant, a common issue that prevents the game from launching or crashes it during play. You’ll learn how to resolve it by clearing corrupted cache, updating drivers, adjusting in-game settings, and repairing the game files. No special tools are needed—just a few minutes and access to your computer’s settings.

What You’ll Need

• A Windows PC (Windows 10 or 11) with Valorant installed.
• Administrator access to your user account.
• Stable internet connection (for downloading updates).
• Optional: A spare mouse and keyboard if you suspect peripheral issues.

Step-by-Step

1. Restart Your Computer and Close Background Apps

Start with the simplest fix. A full restart clears temporary glitches and stops background processes that might conflict with Valorant’s anti-cheat (Vanguard). After restarting, close any unnecessary apps—especially overlays like Discord, MSI Afterburner, or RGB software—before launching the game.

2. Run Valorant and Riot Client as Administrator

Right-click the Valorant shortcut and select “Run as administrator.� Do the same for the Riot Client. This ensures the game has full permissions to write temporary files and access system resources. If the error persists, set both to always run as admin: right-click the shortcut → Properties → Compatibility → check “Run this program as an administrator.�

3. Clear the Riot Client Cache

Corrupted cache files often trigger the critical error. Press Win + R, type %localappdata%, and press Enter. Look for the “Riot Gamesâ€� folder. Inside, you’ll find a “Riot Clientâ€� folder. Delete the “Dataâ€� folder (or just the “Cacheâ€� subfolder if present). Then restart the Riot Client—it will rebuild the cache.

4. Repair Valorant Game Files

If cache clearing doesn’t work, repair the game installation. Open the Riot Client, click your profile icon (top right), then select “Settings.� Under “Valorant,� click “Repair.� The client will scan and re-download any missing or corrupted files. Wait for the process to complete (it may take several minutes) and then try launching the game.

5. Update Graphics Drivers

Outdated or faulty GPU drivers are a leading cause of the critical error. Visit your GPU manufacturer’s website (NVIDIA, AMD, or Intel) and download the latest driver for your specific model. Use the “Clean Installation� option if available. After installing, restart your PC and test Valorant.

6. Adjust In-Game Graphics Settings (If the Error Occurs Mid-Game)

If the error appears after a few minutes of gameplay, your graphics settings may be too demanding. Launch Valorant (if possible) and go to Settings → Video. Lower the following: set “Graphics Quality� to “Medium� or “Low,� disable “V-Sync,� and set “Limit FPS� to “Off� or a value matching your monitor’s refresh rate. Also, disable “Bloom� and “Distortion.� Apply and test.

7. Disable Fullscreen Optimizations and Overlays

Windows’ fullscreen optimizations can conflict with Valorant’s rendering. Right-click the Valorant executable (usually in C:\Riot Games\VALORANT\live\) → Properties → Compatibility → check “Disable fullscreen optimizations.â€� Also, disable any overlay software (Discord, GeForce Experience, Xbox Game Bar) and try again.

8. Reinstall Vanguard (Anti-Cheat)

Vanguard’s service might be corrupted. Open the Riot Client, go to Settings, and under “Vanguard,� click “Uninstall.� Restart your PC—Vanguard will reinstall automatically the next time you launch the Riot Client. If it doesn’t, download the standalone Vanguard installer from Riot’s official site and run it.

9. Perform a Clean Boot

A clean boot starts Windows with minimal drivers and startup programs, isolating conflicts. Press Win + R, type msconfig, and press Enter. Go to the “Servicesâ€� tab, check “Hide all Microsoft services,â€� then click “Disable all.â€� Go to the “Startupâ€� tab and click “Open Task Manager.â€� Disable all startup items. Restart your PC and launch Valorant. If it works, re-enable services one by one to find the culprit.

10. Reinstall Valorant Completely

If nothing else works, uninstall Valorant and the Riot Client (via Control Panel → Programs and Features). Then delete the leftover “Riot Gamesâ€� folder from C:\ and %localappdata%. Restart your PC and install Valorant fresh from the official website.

Common Mistakes

• Skipping the restart: Many users try advanced fixes without a simple reboot, which often clears the error.
• Deleting the wrong folder: When clearing cache, make sure you’re in %localappdata% and not the installation directory—deleting game files instead of cache will worsen the issue.
• Not updating drivers properly: Using Windows Update for GPU drivers is often insufficient. Always use the manufacturer’s site.
• Ignoring Vanguard: The anti-cheat is tightly integrated; if it’s not running or is outdated, you’ll get errors. Ensure it’s set to start with Windows.
• Overclocking instability: If you have an overclocked GPU or CPU, revert to stock speeds—instability can cause the critical error.

Tips

• Keep Windows updated to the latest version; many fixes are rolled out via cumulative updates.
• Set Valorant’s priority to “Highâ€� in Task Manager (right-click the process → Set priority) to reduce stutter and potential crashes.
• Use a wired internet connection to avoid network-related crashes.
• Check if your PC meets the minimum system requirements—if not, the error may be due to insufficient RAM or VRAM.
• Create a system restore point before making major changes like driver updates or reinstalls.

Troubleshooting

If the error persists after trying all steps, consider these additional checks:

• Check event logs: Press Win + X → Event Viewer → Windows Logs → Application. Look for errors related to “VALORANTâ€� or “Vanguardâ€� around the time of the crash. The details can hint at the cause (e.g., missing DLL, memory error).
• Test your RAM: Use Windows Memory Diagnostic (search “Windows Memory Diagnosticâ€� in Start) to check for memory errors. Corrupted RAM can cause random crashes.
• Disable third-party antivirus: Temporarily disable your antivirus (except Windows Defender) to see if it’s blocking Vanguard. If it helps, add exceptions for Valorant and Vanguard.
• Check for overheating: Monitor your CPU/GPU temperatures using tools like MSI Afterburner. Overheating can cause the game to crash.
• Try a different account: Rarely, the issue is tied to your Riot account profile. Log in with a different account to test.

Frequently Asked Questions

What does “Critical Error Occurred� mean in Valorant?

It’s a generic error indicating the game client crashed due to a software conflict, corrupted files, or system instability. The exact cause varies, but the fixes above cover the most common triggers.

Will reinstalling Valorant fix the critical error?

Often, yes—if the issue is corrupted game files. However, if the problem is hardware-related (like an unstable overclock), reinstalling won’t help. Try the other steps first.

Is Vanguard causing the critical error?

Vanguard can cause the error if its driver is outdated or conflicts with other anti-cheat software. Reinstalling Vanguard (Step 8) is a reliable fix for this.

Can I fix the critical error on a laptop with integrated graphics?

Yes, but you may need to lower graphics settings significantly. Ensure your integrated GPU drivers are up to date. If the laptop has a dedicated GPU, make sure Valorant is using it (via Windows Graphics Settings).

Does the critical error occur on consoles?

No, Valorant is a PC-only game. The error is exclusive to Windows.

How long does the repair process take?

Repairing game files via Riot Client typically takes 5-15 minutes, depending on your internet speed and the extent of corruption. Reinstalling the game can take 30-60 minutes.

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