BIOS & startup · high

How to fixSECURE-BOOT-VIOLATION

Violation of Secure Boot

What this error means

Violation of Secure Boot is a high-severity hardware BIOS/UEFI issue. Secure Boot blocked unsigned boot code from running. This usually traces back to old bootloader and corrupted EFI. Use the steps below to track down and fix the cause.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 3 complete
01Turn off Secure Boot in BIOS

Turn off Secure Boot in BIOS.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Register the IOC key

Register the IOC key.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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03Reinstall the OS with SB support

Reinstall the OS with SB support.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

  • Unsigned Linux
  • Old bootloader
  • Corrupted EFI