15s-du4015TU authentication failed

[CND2235]

15s-du4015TU HP laptop authentication failed 

[CND2235]

CND22359SX

[Paul_Tikkanen]

This is a peer to peer forum.

We do not work for or represent HP.

No one here is obliged to answer any questions.

Unfortunately, there are posts which either no one knows what the answer is or we are not permitted to offer assistance for some questions.

Please read the forum rules of participation.

Duplicate posts are not permitted on this forum -- Rule 6.f.

Rules Page - HP Support Community

We are not permitted to help anyone to unlock a notebook because of failed authentication or forgotten passwords, Rule 4.d.

If you can't access your notebook, the only suggestion I can offer would be to see if your notebook is supported by the HP cloud recovery tool which you can use to create a bootable USB recovery drive that will reinstall Windows, the drivers and the software that originally came with your notebook.

Here is an info link for how to use the utility.

HP Consumer PCs - Using the HP Cloud Recovery Tool in Windows 11 and 10 | HP® Support

Since your notebook is not working, you will have to use another PC to create the recovery media with, you will have to enter your notebook's product number in the tool's search window in order to proceed to make the recovery media.

You need to enter the entire product number of 6L778PA and the # and the 3 characters to the right of the # sign.