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When we boot the Operating System (OS) in our computer using Universal Serial Bus (USB) drive or Compact Disc (CD), we may get a "Secure Boot Violation" or "Invalid signature detected. Check secure boot policy in setup" error message.

secure boot violation invalid signature detected check secure boot policy in setup


In this post, I'm going to show you how to fix the secure boot violation error.

But before showing the steps to fix the secure boot violation error, if you don't know what is secure boot and how secure boot works, then let me tell you in short.

What is a secure boot?

Secure boot is a feature of the Unified Extensible Firmware Interface (UEFI). It allows only signed software or file to run on the system, which helps to protect your system from malware.

How does secure boot work?

Secure boot acts like a kind of security guard. It secures the boot process by preventing the loading of UEFI drivers or OS boot loaders that are not signed with an acceptable digital signature. And those which are signed with acceptable digital signatures are accepted and the system boots up successfully.

How to fix secure boot violation

Here are the steps to fix secure boot violation error:

1. Go to BIOS Setup.

Restart the computer and press one of the F2, F12, ESC, DEL keys quickly and repeatedly to open the BIOS (Basic Input/Output System).

Once the BIOS opens, go to the BIOS Setup.

BIOS Setup

Note: It is not necessary that the BIOS settings of each computer are the same, it differs in each computer, so first you need to find the Secure Boot in your computer's BIOS.

2. Go to the Boot tab.

Go to the Boot tab and select the Secure Boot, then disable it.

BIOS: Boot tab

Note: If the Secure Boot option is not clickable or greyed out, you may need to enable legacy boot mode first.

3. Go to the Exit tab.

After disabling Secure Boot, go to the Exit tab and select the Save Changes and Reset, then press enter key.

BIOS: Exit tab

Hope you have successfully fixed the secure boot violation error on your computer. Still, if you have any problem then you can share your problem in below comment box.

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