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If you've already enabled Secure Boot and are still encountering the VAN9003 error, there might be a few more things to check:
1. Check BIOS Mode: Ensure your system is using UEFI mode and not Legacy BIOS. Secure Boot only works with UEFI. You can check this in the System Information app on Windows (Type
2. Verify Secure Boot Status: Confirm Secure Boot is indeed enabled. Sometimes, changes in BIOS settings need saving before exiting. 3. Update Windows: Ensure your Windows OS is fully updated. Some updates might be necessary for Vanguard to recognize Secure Boot. 4. Check Trusted Platform Module (TPM): Enable TPM if itβs disabled. Secure Boot sometimes requires TPM to be active. For further details, please refer to the relevant Riot Games support articles: - Virtualization-based security (VBS) settings on Windows 10 - VAN9001 or VAN9003 Error on Windows 11 If the issue persists, please consider submitting a ticket to Riot Games support for more personalized assistance.
msinfo32 in the Run dialog).
2. Verify Secure Boot Status: Confirm Secure Boot is indeed enabled. Sometimes, changes in BIOS settings need saving before exiting. 3. Update Windows: Ensure your Windows OS is fully updated. Some updates might be necessary for Vanguard to recognize Secure Boot. 4. Check Trusted Platform Module (TPM): Enable TPM if itβs disabled. Secure Boot sometimes requires TPM to be active. For further details, please refer to the relevant Riot Games support articles: - Virtualization-based security (VBS) settings on Windows 10 - VAN9001 or VAN9003 Error on Windows 11 If the issue persists, please consider submitting a ticket to Riot Games support for more personalized assistance.
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Mark Solution. Thank you!still aint working