My screen is black and it says please install an operating system on your hard disk.Hard Disk (3F0)

[Bajrami123]

I need help to see if I can fix my problem after my kids spilled a water on the pc it stopped working. Know when I do power on it comes a black screen that’s show this message:
Boot Device Mot Found
Please install an operating system on your hard disk.
Hard Disk(3F0)
F2 System Diagnostics
For more information, please visit: www.hp.com/go/teachcenter/startup

[1lul · Accepted solution]

I am not HP Support.

1. Press ESC quickly and repeatedly during POWER-ON.

A weird menu appears, at the top there's tabs and below that information and sometimes options (use arrow keys on keyboard to navigate, enter to select (an option or item) plus read bottom bar.)

2. Some tabs to the right of the initial one will have options you can change. Read carefully and research if you think anything could be damaging before saving and rebooting ('F9' key on keyboard.)
We need to try the following.
Remember you can reset your BIOS to defaults if necessary. I would actually try this first. Refer to the bottom bar of BIOS.

The second tab should have the System Time. You need to set this yourself. Correctly. I don't usually mess with the seconds. The order goes MONTH-DAY-YEAR.

More BIOS Settings (note: there are options that lead to new screens with more options sometimes, look carefully!)

(all only if applicable)
'Legacy Support' ON
'Post Delay' set more than zero. 5.
'[Quick/Fast] Boot' OFF
'Secure Boot' OFF
'Network/IPv4/IPv6/[anything related] Boot' OFF
Turn ON anything to do with allowing USB or peripheral booting. This may require pressing an option called USB Devices (I'm unsure what this is actually called) in order to find.

Now, in the right-most/final tab of your BIOS (main-screen, escape to go back if necessary) you set a top down descending list of priorities your computer uses to choose what will boot. If priority one is invalid, it boots the one listed below that and so on.

Use F5 and F6 keys to manipulate the individual options once navigated to with the arrow keys.
Make sure Windows, HDD, Internal Hard Disk, Internal HD, and anything with OS in the name or related is:

above USB /CD / any other peripheral.

Put network boot options (sometimes one, sometimes split IPv4 and IPv6) as the lowest.

If you have two descending lists, do the same for both.

Now hit F9 to 'Save and Restart' or the corresponding key for your device which is listed directly on the bottom of your BIOS screen a little to the right. Click yes, to Save and Reboot.

Report back with details of any anomalies that occurred during this troubleshooting. This may work, this will give support an excellent idea of how they can actually help you.

[Bajrami123]

Thank you so much for your help. I fix my PC