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The error message VAN9003 means that Vanguard requires Secure Boot to be enabled. To resolve this, follow these steps:
1. Check BIOS Mode:
- Ensure your system is using UEFI instead of Legacy BIOS.
2. Enable Secure Boot:
- Restart your computer and enter the BIOS/UEFI settings. This is usually done by pressing a key such as F2, Del, or Esc during startup.
- Navigate to the Boot or Security settings.
- Find the option for Secure Boot and enable it.
- Save your changes and exit the BIOS/UEFI.
3. Verify Secure Boot:
- Boot into Windows and open System Information by typing
msinfo32
in the Run dialog (Win + R)
- Check the "Secure Boot State" to ensure it's set to "On".
For detailed guidance, refer to this support article.
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Ou trouver le secure boute state