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Hp pro book 6470b, It says no operating system even though there is

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The BIOS looks like this

My laptop with 1x 128gb ssd and 1x 512gb hdd with the ssd having windows 10 installed on it, the ssd is totally dedicated to the windows

The hdd I use to store my games and stuff and has an unused windows 10 in 1 partition which was used before I bought the ssd

Now suddenly, when I boot the laptop it says 'no operating system found' and even though there is 1 on bit my storage devices, secure boot is turned on so I can't use USB to install windows again and my laptop doesn't has cd/dvd drive aswell, any fix?

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Hi @bilal37136

Are both the storage drives being shown as detected in BIOS?

Can you turn off secure boot in BIOS?

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The BIOS is very limited and it doesn't show anything related to hard drive or anything

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@bilal37136

What does it show in BIOS>System Configuration?

If the SSD model numbers are there then they're being detected but if they're not shown in the boot options list then the boot partition on the boot drive (C; drive) is faulty.

It won't boot off the second SSD if it is not a "bootable" drive. It could have Windows on it but this doesn't mean that it has been initialized so that it will boot on startup.

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There is no place in the bios which says anything about drives

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@bilal37136

Try running the HDD tests - see p.131 of the maintenance and service guide Advanced System Diagnostics

Update (03/06/25)

Hi @bilal37136

The only thing that I can now suggest is to reset the BIOS back to factory default condition and then check if you can boot the laptop from a recovery USB drive and fix the SSD boot partition.

Here are ways that I'd try to reset the BIOS:

  • Enter BIOS and check if there's a Load Setup Defaults option and select it
  • With the laptop turned off and the charger disconnected (if connected) remove the battery from the laptop and then press and hold the Power on button for 30 seconds and release it.
  • With the laptop turned off and the charger disconnected (if connected) remove the battery from the laptop and the RTC coin cell battery from the motherboard. Go to p.76 in the maintenance guide linked above to see how to remove the coin cell battery.

Once the BIOS has been reset and you can select the USB drive as the 1st boot option (press Esc then F9) and if Win10 is installed in the laptop, create a USB recovery drive. You can create the drive from any known working Win10 PC. All you need is an 8GB USB flashdrive and 1-2 hours of time.

In the host PC go to Control Panel > Recovery > create a recovery drive and follow the prompts.

Once you have the USB recovery drive, insert it into the laptop, and turn it on (ensure that the USB is the 1st boot option). The laptop should boot from the USB drive into the Windows Recovery Environment menus .

When there go to Troubleshooting > Advanced > Startup repair and follow the prompts.

If you select Reset this PC instead, be careful because if you select the wrong option after this you could erase all your personal data and 3rd party apps as Windows will be reinstalled.

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It says the hard drive is working

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I reinstalled bios, it worked but after using the laptop normally for an hour, it randomly shuts off and restarts, stays in the loop, turns on within seconds turns off, it showed windows logo and normal loading but turned and now it only shows black screen, doesn't even show the hp logo now

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@bilal37136

If you used a Win10 Recovery USB to solve the initial problem above, you didn't reinstall the BIOS.

The USB is used to fix the Windows software in the SSD.

When the laptop turns on, it checks the laptop hardware first (POST - Power On Self Test) to make sure that everything is OK and then it looks for a boot partition on a HDD or SSD so that it can load the Operating System (OS).

You said that the BIOS detected the SSD but it was saying no OS found. If it can't find the OS but it can detect the SSD then the problem is in the SSD.

After I assume that you used the Recovery USB you said that it worked OK for an hour before the new problem so it seems that the new problem is that the laptop is not even passing POST (Power On Self Test).

Connect the charger and check if the laptop indicates that the battery is charging OK.

If it is, allow it to fully charge before trying to turn on the laptop, (with the charger still connected).

Report back what happens

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I dont have the charger with me right now, I forgot it somewhere and will get it tomorrow then I'll try charging and till then I'll assume that it has 0% charge

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