Gaming · VALORANT and Riot Vanguard on Windows 11

Fix a Riot Vanguard Error in VALORANT on Windows 11

Source-checked About 15 minutes, depending on the error code

Answer

Write down the full VAN or VAL error code, restart Windows once, and look up that exact code in Riot's Vanguard error list. Apply only the listed fix. Some Windows 11 errors concern Secure Boot, TPM, memory integrity, or exploit protection, so do not disable security or add broad firewall exceptions unless Riot's page for your code specifically requires a change.

Before you continue
  • CodeCopy the full VAN or VAL number.
  • MatchOpen Riot's instructions for that exact code.
  • VerifyRestart when required and test once.
Guide steps6 steps
  1. Record the exact code
  2. Restart Windows once
  3. Find the code in Riot's list
  4. Apply only the matching action
  5. Reinstall Vanguard only when the code requires it
  6. Collect logs for Riot Support
  7. If it still does not work

Record the exact code

Take a screenshot of the complete Vanguard message. The words Vanguard error are not specific enough to choose a safe fix.

Restart Windows once

Save your work and use Start > Power > Restart. Reopen Riot Client after Windows finishes signing in.

Find the code in Riot's list

Open Riot's error-code page and locate the exact VAN or VAL number. Read the whole entry before changing Windows.

Open Riot's Vanguard error-code list

Apply only the matching action

Follow Riot's instruction for that code. If it concerns Secure Boot, TPM, virtualization, memory integrity, or exploit protection, pause if the PC is managed or if you do not understand its firmware settings.

Reinstall Vanguard only when the code requires it

Use Riot's official uninstall flow, restart, open Riot Client to reinstall Vanguard, and restart again if prompted. Never download a separate Vanguard installer from another site.

Use Riot's official Vanguard reinstall path

Collect logs for Riot Support

If the same code returns after its exact fix, collect Riot logs and submit the code, Windows version, and completed step to Riot Support.

Collect logs with Riot's instructions

If it does not work

  • Do not turn off Windows security, Secure Boot, TPM, or the firewall as a general Vanguard fix. A change that helps one code can be wrong or unsafe for another.
  • If the PC belongs to work or school, contact its administrator before changing firmware or security policy.
  • If no code is shown, capture the whole message and use Riot's technical support form rather than trying a random service or registry edit.
Sources and verification

Checked against official documentation on . Scope: VALORANT and Riot Vanguard on Windows 11.

The written steps follow the current help pages linked below. The saved video is an older walkthrough and may show different labels.

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