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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
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- HP Community
- Notebooks
- Notebook Boot and Lockup
- Hard disk error (3fo)

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10-27-2019 05:01 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
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 certainly show the Hard Disk as FAILED and need replacing.
You then need to install an OS etc.
https://www.microsoft.com/en-us/software-download/windows8iso
If in doubt please ask.
10-31-2019 01:56 AM
Hi
Which suggests a TOTAL failure of the Hard Disk, and/or the connection from/to the Main Board has failed.
Initially I suggest you replace the Hard Drive as the Main Board does at least attempt to diagnose the faults.