BIOS & startup · high

How to fix Violation of Secure Boot

Error code: SECURE-BOOT-VIOLATION

What this error means

Secure Boot blocked unsigned boot code from running. This usually traces back to old bootloader and corrupted EFI.

Updated

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 3 complete
01Turn off Secure Boot in BIOS
  1. Turn off Secure Boot in BIOS
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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02Register the IOC key
  1. Register the IOC key
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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03Reinstall the OS with SB support
  1. Reinstall the OS with SB support
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • Unsigned Linux
  • Old bootloader
  • Corrupted EFI