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- HP Community
- Notebooks
- Notebook Boot and Lockup
- 2019 Spectre x360 13" Hard Disk Error on start up (3FO)

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12-07-2020 08:46 PM
When I attempt to start up my computer, I get a black screen that says "Boot Device not found; Hard disk - (3FO)" This is the first issue I've had with it, I'm not really sure where to go from here. I haven't dropped it or gotten it wet or otherwise caused it harm.
12-08-2020 01:32 PM
This issue is often due to a failing drive. So, let's check that first, because if it is failing, it would need to be replaced and there is no point then in doing anything else until we confirm that.
If your PC is new enough to support UEFI, you can use these steps to test the hard drive: http://support.hp.com/us-en/document/c00439024
If not, to check the drive you have to follow these steps:
1) Press Esc key repeatedly, several times a second, while rebooting the laptop. Do NOT hold the key down, just press it over and over.
2) Eventually, you will see an HP Startup Menu
3) Press the Function key for testing the hard drive (usually F2) and let it run.
If the drive checks out OK, then report that and I can provide you options for reinstalling Windows on your PC.
I am a volunteer and I do not work for, nor represent, HP