How to Fix Boot Device Not Found 3f0 Error?

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The most common error faced by computer users is Boot Device Not Found 3F0 Error which occurs unexpectedly without considering your next action. You can follow the below guidelines to fix Boot Device Not Found 3F0 Error.

Remember, all these measures are effective only when you see these hard drive errors on your screen.

  • Boot device not found. Please install an operating system on your hard disk.
  • No boot device available.
  • Boot device not found – hard disk (3F0).
  • No bootable device found. Insert boot disk and press any key.

When Boot Device Not Found 3F0 Error occurs?

A hard drive Boot Device Not Found 3F0 Error occurs when your hard disk doesn't supports the system boot process. When the booting process takes place, the OS loads into RAM. For this, a setup automatically initiates, and Basic Input-Output System (BIOS) takes the complete charge.

This BIOS works by accessing certain files from the bootable device (hard disk). But when BIOS is unable to access the hard drive, then Boot Device Not Found 3F0 Error is shown on computer screen.

Causes for Boot Device Not Found 3F0 Error-

Once you identify the cause of 3F0 error, step ahead to fix boot device error. The possible causes behind this hard drive 3F0 error are:

  • Incorrect BIOS boot sequence
  • Damaged Master Boot Record
  • Hard drive connection issue
  • Malware attack
  • Corrupted hard drive partition
  • Damaged hard drive

Steps to Fix Boot Device Not Found 3F0 Error:

Fix Boot Device Not Found 3f0 Error

1. Perform a Hard Reset

A hard reset is required to re-establish the connection between BIOS and hardware. Simply perform a hard reset and it will fix the boot device error. Further, continue with the steps:

  • Switch off your computer.
  • Take off the computer from the docking station and remove the AC adapter from the computer.
  • Ensure that no peripheral devices is connected to the computer.
  • Continuously press the Power button for 15 seconds to drain out the left charge.
  • Next, press the Power button in order to start the system.
  • Once you see the Startup menu, use the arrow keys and Start Windows Normally. Later, press Enter.
2. Restore BIOS Settings to Default

Sometimes, your system is unable to boot using an unbootable disk. So, you can try the following steps:

  • Start your computer by pressing the Power button. Subsequently, press the F10 key repeatedly to enter the BIOS settings.
  • Press F9 on the BIOS setup menu to load and restore default settings of BIOS.
  • Once BIOS is loaded, press F10 to Save and Exit from BIOS settings.
  • Select yes to save the changes before exiting.
  • Finally, you can restart the computer.
3. Reset Hard Drive

When there are loose connections, reset your hard drive which may help to fix boot device not found error. Follow these quick steps:

  • Press the Power button until the computer turns off.
  • Remove the power cable.
  • Next, disconnect and reconnect the hard drive to your computer.
  • Reassemble and reconnect your computer. Check if it works fine.

DIY Methods to fix Boot Device Not Found 3F0 Error:

You can use any one of these methods to resolve Boot Device Not Found 3F0 Error.

1. Bad sectors in Hard Drive

Bad sectors are defective areas of your hard drive storage that may develop due to any kind of physical damage. In such cases, the complete hard drive doesn’t respond to read or write requests.

Thereafter, the hard drive testing mechanism checks for any bad sectors over the disk. You can avail the help of a data recovery professional to identify and fix hard disk not found error.

2. Damaged MBR

Master Boot Record (MBR) is a core part of the hard disk containing the executable files required for loading the OS on the RAM. In case the the MBR is damaged, you have to rebuild it for fixing the 3F0 error.

Like, in most of the cases, the damage is because of malware attacks, disk failure, or MBR overwrites. You can consult a data recovery professional who will the best action for this situation.

3. Physical Damages

The physical hard drive damage may be caused due to PCB damage, motor failure, head crash, scratches on the platter, or something else. For such a case, adopting a DIY approach to repair hard drive is essential.

Ask a data recovery professional who is equipped with all set of tools, a clean room, and necessary skills to fix ‘hard disk not found error.

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