How to Fix Common Valorant Vanguard Errors

Few things are more frustrating than opening Valorant and discovering that the game will not start because of a Vanguard error.

Riot Vanguard is the anti-cheat software used by Valorant. Startup problems can involve a pending restart, a service that failed to initialize, incompatible system settings, or a connection issue.

The right solution depends on the exact error. Work through the following steps before making major changes to your computer.

1. Restart your computer

Start with a full restart rather than repeatedly reopening the game.

Some Vanguard updates and system changes require Windows to restart before the game can run normally. Save your work, restart the computer, and try launching Valorant again.

If the error remains, record the exact message or error code. This makes the next troubleshooting step much easier.

2. Check for updates

Outdated system components can contribute to compatibility and startup issues.

Check for available Windows updates and install supported graphics drivers from your hardware manufacturer's official website. If the problem started immediately after an update, note the timing so you can investigate that change.

Also make sure the Valorant client has completed any pending game updates.

Do not download replacement Vanguard files from unofficial websites.

3. Check whether the Vanguard service is running

If the game reports a service-related problem, the Vanguard service may not have started correctly.

On Windows, you can inspect services using the Services application:

• Press Windows + R.
• Enter services.msc.
• Find the service named vgc, if it is listed.
• Inspect its status and startup configuration.
• Follow Riot's official instructions for the specific error if the service is stopped or fails to start.

Do not change unrelated system services. If Windows displays an access or configuration error, use official support guidance rather than applying random registry changes.

4. Reinstall Riot Vanguard

If Vanguard appears damaged or cannot initialize, reinstalling it may help.

A typical troubleshooting sequence is:

• Close Valorant and the Riot Client.
• Open Windows Settings and navigate to installed applications.
• Find Riot Vanguard and uninstall it.
• Restart your computer.
• Open the Riot Client and launch Valorant so the client can reinstall Vanguard if required.
• Restart again if prompted, then test the game.

Exact steps may vary with the current client version. Consult Riot's official support documentation if the installer behaves differently or requests additional action.

5. Check the exact VAN error code

Not every Vanguard message has the same cause.

Some codes indicate a restart requirement, while others may concern connection problems, security configuration, or a particular Windows environment.

Write down the full code and search for it in Riot Games' official support resources. Avoid applying a fix intended for a different code simply because the error message looks similar.

What if the game reports a security configuration problem?

Some Vanguard errors require specific Windows security features or firmware settings.

The correct requirement depends on the error, Windows version, and system configuration. Follow the official instructions for your particular message. Before changing BIOS or firmware settings, understand the implications and ensure you have access to any necessary recovery information.

Do not disable security protections just to make an unknown workaround function.

6. Check for conflicting software

If Vanguard worked previously and stopped after installing or updating another application, investigate that change.

Close recently installed utilities one at a time and consult Riot's support guidance about software compatibility.

Avoid deleting unfamiliar system files, disabling essential security components, or running third-party scripts that claim to repair Vanguard automatically.

If the error began after a system change, reversing that specific change through a supported process may be more useful than reinstalling Windows.

When should you contact Riot Support?

Contact official support if:

• The same error returns after the recommended troubleshooting steps.
• Vanguard repeatedly fails to install or initialize.
• Windows reports a service or security configuration problem you cannot resolve.
• You cannot identify the cause from the published guidance.
• The game displays a restriction or enforcement message that needs clarification.

Include your error code, Windows version, when the problem started, and the troubleshooting steps you have already tried. Never include passwords or account recovery codes in a support request.

Final thoughts

Vanguard errors are easier to troubleshoot when you work from the exact message instead of trying random fixes.

Restart the PC, check updates, investigate the relevant service, and use Riot's official instructions for your specific error. If the issue persists, gather the details and contact support rather than weakening your system's security.