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Desktop will not boot up on either UEFI or Legacy

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Pavillion 595-p0084
Microsoft Windows 10 (64-bit)

Was using my desktop normally when all of a sudden it cut out, and told me that my disk was not bootable (SSD). I havent made any changes to hardware or even opened my computer up. It gives me the "3FO" error and in the BIOS settings, my two hard drives do not show up on either uefi or legacy mode and when i push F9 to pick where I want to boot from, it gives me no options but "UEFI Boot Options" or "Legacy Boot Options" and it wont let me select them. What should I do?

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If someone knows almost anything. That would be helpful as could be.

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HP Support Agent
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@JonW42 Welcome to HP Community!


I understand that you are getting a 3F0 error.


Please perform the below steps and check.


Hard Reset:

1) Shutdown the computer.  

2) Unplug all the Adapter and peripherals connected.  

3) Remove the Battery. ( not for Built-in Battery computer ) 

4) Press and hold down the power button for 15 to 20 seconds.  

5) Plug-in the Adapter and put the Battery back into the computer if it's a (removable battery)

6) Try to turn on the computer and check, If the issue persists continue next step


Set BIOS default and restart:

  1. Restart your notebook.
  2. During startup, press F10 repeatedly until the BIOS menu is displayed.
  3. Once the BIOS menu is displayed, press F9 to restore factory defaults.
  4. Select Yes to confirm.
  5. Press F10 to save changes and exit.
  6. Select Yes to confirm.
  7. The computer restarts using the default settings.

For more help refer to the below link.


let me know how that pans out,

And the answer to the above question will help me, help you!

Keep me posted, and if any of the above questionnaires helped resolve the issue, 

Mark this post as an "Accepted Solution".
Good luck.


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