www.HP/go/techcenter/startup

[GerryBrownHill]

I take it you have NO HUMAN BEINGS.

I just need a site to get a bettery

[Fenixreign]

Instead of screaming, do some research.  https://parts.hp.com/hpparts/default.aspx?cc=US&lang=EN is the parts store for HP.  If you cannot find it on there, click on the Contact Us link at the bottom of the page.  If they cannot help you, there are several manufacturers out there that make replacement parts for obsolete hardware.

Getting angry and yelling makes people want to help you LESS, not more.

[plasdan]

Failure of Boot device

[plasdan]

I can not do as you suggest. I have a screen which says

Boot Device Not Found

Please install an operating system on your hard disk

F2 System Diagnostics

For more information, please visit www.hp.com/go/techcenter/startup

My computer will not respond to anything.

[Betty0610]

@plasdan

Welcome to the HP Support Community.

To help you further with this, let us know the Computer name and model number.

Meanwhile, you can use this genetic document: https://support.hp.com/in-en/document/c01443463

Let me know if this helps.

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers!

Thanks!

Have a great day!

[Yockbo]

I have a computer a person had upgrade win 10 but ppl tried but I'm trying ok it's at boot device not found.  Please install an operating system on your hard disk     hard disk (3F0).  F2 system diagnostic 

[fredreed2000]

It is possible that the hard drive is either bad or you haven’t formatted It yet. Do not install the operating system from a disc either If you are you should do It from a USB flash drive instead because It is quicker and faster and also easier.