secure boot violation, cannot access BIOS

[Ethan2001]

I go to load up my pavilion 23 all in one computer. When i load it up, the HP screen loads as normal then goes straight to the secure boot violation screen which is completely black except a small red box in the center with Secure Boot Violation at the top and Invalid Signature detected. Check secre Boot Policy in setup.

I have reset the computer multiple times and i have pressed all the keys that would normally let my computer enter the BIOS however, non of the work as if this secure boot violation were blocking me from accessing BIOS. 

I have pressed the F12 key on the HP loading screen and nothing happens. When I unplug the computer, and reset it that way, for a split second, it loads the command screen for the default BIOS and tells me to press ESC. When I press ESC, nothing happens and the secure boot violation screen appears yet again.

I am very confused on what to do, does anybody know the solution to this?

[Riddle_Decipher]

@Ethan2001 Enable Secure Boot to block malware attacks, virus infections, and the use of non-trusted hardware or bootable CDs or DVDs that can harm the computer. You can also disable Secure Boot to use trusted but unrecognized hardware (such as older video cards) or to boot from an unrecognized recovery disc.

All HP computers manufactured with Windows 10 come with Secure Boot enabled by default. If you upgraded to Windows 10 from an earlier Windows version, you can use Secure Boot only if an AMI BIOS version 8 compatible with UEFI is available for the computer. Go to HP Desktop PCs - Updating the BIOS for additional information.

FOR DETAILS & FURTHER INSTRUCTIONS, USE THIS LINK: CLICK HERE

(By the end of this article all the issues should be resolved)

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[Ethan2001]

I am not very good with computers, but whenever I go to load the pc, it loads and when I press Del the default BIOS loads up and says that it loaded successfully but shortly after the secure boot violation screen blocks me from doing anything else again. I cannot access anything and I cannot change anything. @riddle_descipher

[Riddle_Decipher]

@Ethan2001 If you've done all that and yet the issue persists, this may be a hardware malfunction and I suggest you talk to HP support and discuss your options, follow the below steps to get started:

1) Click on this link - http://www.hp.com/contacthp/

2) Click on Sign-in or select the product using the below step:

3) Enter the serial of your device.

4) Select the country from the drop-down.

5) Click on "Show Options".

Fill the web-form, to populate a case number and phone number for yourself!

Also, if you are having trouble navigating through the above options, it's most likely because the device is out of warranty, if yes? please send me a private message with the region you are contacting us from, 

here's how private messages work: Click here for details.

If you wish to thank me for my efforts, you could click on "Accept as solution" on my post as the solution should help others too.