Why am I getting Boot Device Not Found (Hard Disk 3F0) error?

[Elizabeth]

I suddenly got this error when starting my laptop and it won’t boot properly. I’m not sure what caused it — maybe a hard drive issue or BIOS problem? I’m not very technical, so I just want to know how to fix it step-by-step. Any ideas or fixes that worked for you?

 

[niyati]

The error that occurs is the Boot Device Not Found (Hard Disk 3F0). You should also see this error when the computer is unable to identify the hard drive holding the operating system. It can be caused by a loose or broken connection of the hard drive, and corrupted boot files, misconfigured BIOS, or a malfunctioning hard drive and requires replacement.

 

[pablo]

The “Boot Device Not Found (Hard Disk 3F0)” error means your PC can’t detect the hard drive. Causes include a loose or failed drive, corrupted boot files, or incorrect BIOS settings. Check BIOS boot order, reseat or replace the drive, and repair Windows boot files if needed.

 

[nikhilrajoria]

Causes:

1. Damaged / broken hard disk.
2. Corrupted boot sector
3. BIOS misconfiguration
4. Failing SSD/HDD

Fixes:

1. Check BIOS You have to check the proper order of boot.
2. Run Windows Startup Repair
3. Reformat or change the hard disk.
4. Bootloader Repair using a bootable USB.

 

[isabel]

You’re getting the Boot Device Not Found (3F0) error because your laptop can’t detect the hard drive - usually due to a loose connection, BIOS settings reset, or a failing drive. Try reseating the drive, checking BIOS boot order, or running a hardware diagnostic to confirm the issue.