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Boot Device Not Found - Hard Drive Error (3F0)
03-27-2020 06:49 AM

I am getting a Boot Device Not Found error when I start up my computer. Nothing I do is working.
03-27-2020 07:03 AM

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...
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.
03-28-2020 05:03 AM

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.

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