Secure Boot Violation

[EPtv]

When I turn on my computer, the screen is black with a light blue box in the center. It reads "Secure Boot Violation, Invalid signature detected. Check secure boot policy in setup."

No mouse function, when I hey enter, I can run tests in a dos format. They all run "good" but I cannot get anywhere else. I have turned off and back on, tried hitting F2 repeatedly at power up, it all takes me to the same error. 

Any help is appreciated!

[Deep_World]

Hi @EPtv,
 
Welcome to the HP Support Community!

Thanks for reaching out!

I Understand your concern about  Secure boot violation issue, don’t worry let me help you with this.

To better understand the issue, could you please provide a few more details?

• The exact HP model of your computer ?
• Whether you recently made any changes to the BIOS/UEFI settings or installed new hardware/software.
• If Windows was updated just before this issue started.

Here are a few troubleshooting steps you can try:

1. Access BIOS/UEFI Setup
   • Power off your computer completely.
   • Turn it back on and immediately press Esc repeatedly until the Startup Menu appears.
   • From there, press F10 to enter BIOS Setup.
   • Check under the Boot Options or Security tab for Secure Boot settings.
2. Disable Secure Boot Temporarily
   • In BIOS, locate Secure Boot and set it to Disabled.
   • Save changes and restart.
   • If the system boots normally, this confirms the issue is related to Secure Boot policy.
3. Restore BIOS Defaults
   • In BIOS Setup, look for an option like Restore Defaults or Load Setup Defaults.
   • Apply it, save, and restart. This often clears signature mismatches.
4. Check Boot Device

• Ensure your primary hard drive/SSD is listed as the first boot device.
• If it isn’t, adjust the boot order.

If none of these steps help, we may need to look at whether the boot files are corrupted or if a BIOS update is required.

I hope this helps.