How to fix secure boot violation

[Lance86]

I am getting a red screen upon start up that states secure boot violation. Invalid signature detected. Check secure boot policy in setup. How do I resolve this issue

[Pallipurath]

Hi @Lance86 

Welcome to the HP Support Community.

Thank you for posting your query.

Thank you for providing detailed information about your HP device. The Secure Boot Violation message continues to appear, but since the system is operating with Secure Boot disabled, this confirms that both the hardware and operating system remain intact.

To restore Secure Boot functionality, please follow the recommended steps below:

Step 1: Access BIOS Setup

• Power on the computer and immediately press F10 repeatedly until the BIOS Setup screen opens.
• Navigate to Security > Secure Boot Configuration.

Step 2: Restore Factory Keys

• In the Secure Boot Configuration menu, select Restore Factory Keys.
• Save changes and exit BIOS.
• Restart the computer to check if the error clears.

Step 3: Verify Boot Mode and Boot Manager

• Ensure UEFI Boot Mode is enabled and Legacy Support is disabled.
• Confirm that Windows Boot Manager is listed first in the boot order.

Step 4: Update BIOS

• Download and install the latest BIOS update for your product from HP’s official support page:
  HP PCs – Updating the BIOS (Basic Input Output System)
• After updating, re‑enter BIOS and confirm Secure Boot is enabled.

Hope this helps, Please revert if the issue persists.

Take care and have an amazing day!

[Lance86]

Thank you for the information. I also have a blue screen upon pressing ENTER that states BOOT DEVICE NOT FOUND ON YOUR HARD DISK 3F0. PLEASE INSTALL AN OPERATING SYSTEM.  How do I resolve this. Thanks

[Pallipurath]

Hi @Lance86,

Thank you for responding.

I would request you to follow the link for the Error. This error typically occurs when your computer is unable to locate the bootable device, usually a hard drive or SSD.
 https://support.hp.com/us-en/document/ish_3053911-2842957-16 

Have a good day.