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Buddavid
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Message 1 of 4
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HP 24-f0023na Full-HD All-in-One - Secure Boot Violation

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all in one

At start up I get a red screen - SECURE bOOT vIOLATION - Invelid signature detected , check secure boot policy in set-up

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Grzwacz
Level 12
Level 12
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Message 2 of 4
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Greetings,

Welcome to the forum.

I am not a HP employee.

 

I have previously seen this problem in the forum. Offered advice but never received any feedback if the advice was helpful.

 

The possible cause could be:

 

BIOS problem with Secure Boot keys,

You have added new hardware, or

You are booting to, or have connected, unsigned boot media in a USB port.

 

Use this (Link) to see if you can fix the problem per the following troubleshooting steps:

 

-Try resetting the BIOS to defaults. Located on the main BIOS Menu under (File).

 

-Try disabling Secure Boot and enabling Legacy Support. Located in the Security Menu, Secure Boot Configuration.

 

-Try clearing HP's Secure Boot Keys. Located in the Security Menu, Secure Boot Configuration.

 

Remove any USB device connected to the PC.

 

Regards

 

 

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Buddavid
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Message 3 of 4
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This seems to have moved me closer ,  I know get this screen , but ig goes no further ?WIN_20190915_22_49_54_Pro.jpgWIN_20190915_22_49_54_Pro.jpg

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Grzwacz
Level 12
Level 12
7,153 5,604 681 1,651
Message 4 of 4
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HP Recommended

Hi Buddavid,

 

Well , this usually means your PC cannot POST.

 

You are trapped at the HP logo.

 

I think you have a BIOS/motherboard problem, (or a component connected to the motherboard), or a peripheral USB device connected to the PC, or possibly a power supply problem. Yes, power supplies can cause strange behavior.

 

The only other thing I would try is to shut down and disconnect from AC power.

 

Disassemble the system in a static-free environment.

 

Remove the CR2032 battery.

 

Let the PC sit for about 15 minutes.

 

Reverse this process. Try to start the system again.

 

No joy means HP service or a reputable, local, PC tech has to check this to find the problem.

 

No other way to help in a forum.

 

Regards

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