Windows 10: Windows Boot Device Not found. 3F0.l

My computer randomly shut down while I was doing some classwork and this screen popped up. I did a lot of tutorials on how to fix it and none seem to work. I did tests on my hard drive and it seems to work fine yet windows claims that there is no operating system on my hard disk. If possible could someone tell me how to fix?

:)

 

3f0 no OS found Error HP. Sometimes can boot into drive!

Please read all for full sequence of events and diagnostics. Placed from mobile smartphone.



Computer: HP Pavilion 24-xa0020, Black - 4NM45AA#ABA
OS: Windows 10 Pro
Keyboard Wireless only


What has been completed:

previous- Power outage caused 3FO.
HP diagnostics No harddrive found??Removed Wireless radio USB dongal. Fixed
Computer boot.

Current--
May 1st, 2020: 3F0 error occurred after hard power button shutdown.
Steps taken.
1. Removed dongles- No Fix (boot to OS hdd=No, 3f0 error repeated.)
2. Entered Bios, reset to default- No Fix (Boot to OS HDD= No, 3f0 error screen repeated.)
3. Inserted official Windows 10 media tool USB flash memory stick No fix( Boot to USB =yes, Basic diagnostic= No HDD Found)
4. Reentered Bios rest To default, no fix (Boot to OS HDD= No, 3f0 error screen repeated)
5. Turned off computer disconected external power supply cable pulg, Came home from work (9 hours 45 minutes), Reconnected same power supply. Fixed yes (Boot to OS HDD = Yes OS operational)

Entered Windows Restart. Computer restarted.

Entered Windows shutdown. Computer Shows HP 3f0 error screen!

Repeated step 5 from above! Computer fixed boot to OS!


Scared to shutdown computer please help!

Currently have a 3f0!

- - - Updated - - -

Oh God I may never BE ABLE TO shut down my computer HELP!

 

boot device not found, operating system not installed, hard disk 3F0

Greetings,



Whenever I am starting my laptop below message is displaying

“boot device not found, operating system not installed, hard disk 3F0, press F2 system diagnostics

I can’t installed my windows on hard disk, any windows not getting boot after starting



After checking my hard disk for quick check following error displayed

hard drive Smart check- FAILED & failure id- QCXTH1-6KW601-MFPX1A-960EV03



please suggest for hard disk fixing. I already recovered my data by removing hard disk and attached with pc as USB



HP Pavilion 14-b109ex Ultrabook

SERIAL NO. 5CD2526C98

Hitachi Hard disk -750 GB

 

Boot Device not found

Hi Alan,

Corrupted system files or it boot to a different hard drive that it why you received the message Boot Device no found. To better assist you, we'd like to gather more information:

• Have you made any changes prior to this issue?
• Which build and version of Windows 10 are you using?

Meanwhile, we suggest that you follow these steps on how to perform automatic repair:

• Force turn off your computer/device 3 times until you reach the Automatic Repair environment.
• On the list of options under Advance options, choose Start-up Repair and perform the instructions.

Let us know if you need further assistance.