Fix Valorant Error 43: Valorant Error 43: Troubleshooting and Fix Guide (Valorant)
Encountering Valorant Error 43 can be frustrating, preventing you from joining the game. This error typically indicates a problem with the Valorant Vanguard anti-cheat system, often related to driver conflicts, corrupted files, or system permissions. This guide will walk you through a series of troubleshooting steps to resolve this issue and get you back into the game.
🧐 Causes
- Vanguard Driver Issues: The most common cause. Vanguard might be outdated, corrupted, or conflicting with other software.
- System File Corruption: Damaged system files can interfere with Vanguard’s operation.
- Administrator Privileges: Valorant and Vanguard require administrator privileges to function correctly.
- Third-Party Software Interference: Certain security software, overlays, or other applications can block Vanguard.
- Network Connectivity: Although less common, network issues can sometimes trigger this error.

🔧 Fixes
- Restart Your Computer: A simple restart can often resolve temporary glitches.
- Run Valorant as Administrator: Right-click the Valorant icon and select “Run as administrator.” Also, right-click the Riot Client and select “Run as administrator.”
- Repair Valorant Files:
- Open the Riot Client.
- Click the gear icon (Settings).
- Navigate to “Valorant.”
- Click “Repair.”
- Update Your Graphics Drivers: Outdated drivers can cause conflicts. Download and install the latest drivers from NVIDIA, AMD, or Intel’s website.
- Reinstall Vanguard:
- Close Valorant and the Riot Client completely.
- Press Windows Key + R, type %localappdata% and press Enter.
- Delete the Vanguard folder.
- Restart your computer.
- Launch Valorant – Vanguard will automatically reinstall.
- Disable Third-Party Antivirus/Firewall Temporarily: Temporarily disable your antivirus and firewall to see if they are interfering with Vanguard. Remember to re-enable them afterward!
- Check for Windows Updates: Ensure your Windows operating system is up to date.
- Perform a Clean Boot: A clean boot starts Windows with a minimal set of drivers and startup programs. This can help identify if a background program is causing the issue. Search online for “How to perform a clean boot in Windows” for detailed instructions.
- Verify System File Integrity:
- Open Command Prompt as administrator.
- Type sfc /scannow and press Enter.
- Allow the scan to complete.
- Reinstall Valorant: As a last resort, uninstall and reinstall Valorant.
🚀 Summary
Valorant Error 43 is usually related to the Vanguard anti-cheat system. By systematically working through the fixes above – starting with the simplest solutions like restarting and running as administrator, and progressing to more involved steps like reinstalling Vanguard or performing a clean boot – you should be able to identify and resolve the underlying cause of the error. Remember to always re-enable your antivirus and firewall after testing, and keep your system and drivers up to date.