Not starting

[DLopez4]

WHEA_UNCORRECTABLE_ERROR is what I get when I turn on the computer. Then it goes to Black screen that says

Boot Device not found. Please install an operating system on your hard disk

This computer is 5 months old. I've been getting this black screen every few days since the first week but have always been able to just turn it off and back on. Now it won't do anything.

Tech support says I have to either buy a flash drive to load recovery media or pay $80 for recover media from them without flash drive 

Any help?

[WAWood]

@DLopez4 

There are a couple of different possibilities here and BOTH of them require you to create media to fix each of them.

Windows PCs use two different sets of files to get you to a working desktop.

In terms of the first, Windows boot files, you need to follow the instructions below to create boot media from Macrium Reflect (MR) that can be used to rewrite/repair the boot media on your PC:
1) Download and install Macrium Reflect (MR) from this link on a working PC: http://www.macrium.com/reflectfree.aspx
2) Use the option to create a boot USB stick or CD

That will create MR bootable media. Then, you can boot your PC into WinPE using that media.

Have patience, as that can take a while to start and bring up the screen.

Once the screen is there, select the option to Fix Windows boot problems. It will then search for the OSs installed and list them, Select the one you want to repair and click Next.

It will now do the repairs, listing the things it has done.

When finished, select the option to Restart the PC.

If this worked, the boot repair succeeded and you will have your PC back.

But if it did not, the Windows system files are most likely corrupted and you would have to reinstall Windows from scratch to fix that. And in that case, you would have to buy a 32GB  USB to use with an HP utility to create recovery media to restore your PC.