Are you facing VAN 9051 Riot Vanguard Internal Error while launching VALORANT or League of Legends? ⚠️
Don’t worry! In this step-by-step guide, I’ll show you how to fix VAN 9051 error on Windows 10/11 in 2025.
✅ Fixes Covered:
Restart Riot Client & Riot Vanguard Service
Reinstall Riot Vanguard Anti-Cheat
Update Windows 10/11 to latest build
Enable Secure Boot & TPM 2.0 in BIOS
Reinstall VALORANT / LoL (if nothing works)
🔥 100% Working Methods (Tested in 2025)
📌 Works on both VALORANT and League of Legends (LoL)
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