Boot Device Not Found - Hard Drive Error (3F0)

[Tillie86]

I am getting a Boot Device Not Found error when I start up my computer.  Nothing I do is working.

[Lil_Boy_Blue]

Hi
First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat; Re-Connect the AC adapter.

NOW begin checking/testing/proving the Hardware is fit for purpose.
Power on your PC, press ESC (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

Which will probably prove the HDD has failed.

Manuals etc here...

https://support.hp.com/gb-en/product/hp-pavilion-24-r000-all-in-one-desktop-pc-series/17210305/model...

and an OS here...

https://www.microsoft.com/en-us/software-download/windows10

From 2016 onwards there is a possible recovery option via the cloud...
HP Consumer PCs - Using the HP Cloud Recovery Tool (Windows 7 & 10)
https://support.hp.com/us-en/document/c06162205

If in doubt please ask.

[Tillie86]

After the hard drive test i am getting this message "No hard drive installed. Please check that the power and data cables are connected properly."

[Lil_Boy_Blue]

Hi

That suggests to me that you have a total failure, where the HDD is not even recognised as being present, unless it has been dislodged.

As it could also be a Main Board problem you may want to either remove and test the HDD, then replace OR take it to a local repairer for an opinion/estimate.