Operating system not found.

[unluckyuser]

I’ve posted to 5 different technology forum websites and I’m starting to run out of options. HP has been no help either, and my warranty has expired. How can I fix this?

[WAWood]

@unluckyuser 

First off, I can find no information for an HP 580-68 model PC, so I can not find out anything about your PC.

So, I have to ask how old is the PC?

Also, this issue is almost always due to a failing drive.

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.

[unluckyuser]

My PC passed the extensive and short hard disk test . The computer itself is around 2 years old. And you weren’t able to find info about the model? It is part of the HP Pavilion Power Gaming Desktop series. 580-68 is the model number that shows on the bottom.