Boot device not found (3FO) error

[Vyle]

When I start my laptop the screen shows Boot device not found. Please install an operating system on your hard drive

Hard Disk Error (3FO) 

I press F2 and run Hardware Test in which I do Quick test and it shows this that no hard drive detected but when I do it initially it shows test and now this shows no hard drive detected

Now what should I do, Please help me.

I can't understand how this happen it is was running fine and I just not do work for 2 days on my laptop and when I see this it shows up this. If it shows that on emergency time it can cause some serious problems. 

[WAWood]

@Vyle 

That error code means your disk drive is failing and needs to be replaced.

Once you have the replacement drive, read the information below about HP Could Recovery to be used to restore your PC to working condition:

If your PC is a 2016 model or newer, you should see if you can make a bootable USB recovery drive using the HP cloud recovery tool on a working PC.

The recovery drive can then be used to install Win10 and the HP drivers and utilities that originally came with your PC.

Here is the link: https://support.hp.com/us-en/document/c06162205