Notebook will not start, error 0xc000000f, rescue USB does not helpf

[JudyMoody]

Dear Community,

since yesterday, my notebook wouldn't stark. It keeps showing a black display stating error 0xc000000f and saying that \WINDOWS\system32\winload.efi is missing or contains errors.

I tried to repair it by using a rescue USB (did not work so far) and by trying to update BIOS (right now vers). My problem is: when I want to update BIOS, there are Versions 84A6 and 84A8 but my notebook has the system board ID 84A7. So I could not figure out, which version I need.

Has anyone an idea how to repair my notebook?

Greetings!

[WAWood]

@JudyMoody 

This error is unrelated to the BIOS and basically indicates that Windows system files have become corrupted to the point that Windows will not load anymore.

There is no way to repair it without completely reinstalling Windows and you will lose everything in the process.

Plus, 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.