using my laptop and receive a black screen with F2 system diagnostics; hard disk (3F0). What does th

[Narstan]

using my laptop and receive a black screen with F2 system diagnostics; hard disk (3F0). What does this means 

[sandytechy20]

@Narstan

Welcome to the HP support community.

please follow the below steps to identify and resolve this concern:

Step 1: Perform a hard reset

HP Notebook PCs - Performing a Hard Reset or Forced Reset

Step 2: Restore BIOS default setting

Step 3: Test the hard drive using HP PC Hardware Diagnostics UEFI (In your case, Skip to Step 4

Step 4: Reseat the hard drive (here's a video that shows how to re-seat the drive: Click here)

Step 5: If the tests pass, Perform an HP System Recovery

(If none of the above actions resolved the error condition, back up your personal data) and then perform an HP System Recovery on the notebook:

Click here for instructions.

I hope that helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.