How to Fix Boot Device Not Found 3F0 Error?

Summary: Boot device not found is a very common error. This blog lists down possible issues due to which this error can occur on your system. Also, we list down some simple steps to fix the 3FO error.

In some cases, this 3FO error may ask you to install a new operating system on your machine. Before you decide to reinstall a new OS on your PC, you can explore some alternatives listed in this blog. Installing a new OS on your PC should be the last option which you go for.

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“I have an HP laptop and unfortunately I cannot start it up normally. It shows Boot Device Not Found. Please install an operating system on your hard disk (3F0).” I have no idea about this error. What should I do? Please help!

The hard disk 3F0 error indicates that your system isn’t able to find a boot device. The boot device not found 3F0 error may occur due to various reasons, such as incorrect BIOS boot sequence, hard drive not properly plugged in, a corrupted hard disk partition, etc. It can occur with different error messages, such as:

“No boot device – insert boot disk and press any key.”

“Boot Device Not Found. Please install an operating system on your hard disk.”

“No Boot Device Found. Press any key to reboot the machine.”

“No boot device is available.”

In this blog, you will be able to learn about:

Table of Contents:

  1. Why Does Boot Device Not Found 3F0 Error Occur?
  2. Methods To Fix Boot Device Not Found 3F0 Error
  3. Recover Data From Damaged Hard Drive
  4. Summing It Up

Why Boot Device Not Found 3F0 Error Occur?

The “Boot Device Not Found“, “No Boot Device Is Detected” or “HP boot device not found” error message occurs when the operating system is unable to find the boot sector of the hard drive or the bootable hard disk. Below we have mentioned some possible reasons for the error:

  • Wrong boot order in BIOS
  • Hard disk connection problem
  • Outdated or misconfigured BIOS
  • Corrupted bootable disk
  • Damaged system files or boot files
  • Corrupted MBR/boot sector in the BIOS

Read: How to Fix Hard Drive Error Code 0146 ?

Methods To Fix Boot Device Not Found 3F0 Error

Follow the methods given below to fix the boot device not found 3F0 error.

Method 1: Change The Boot Order

Ensure that the hard drive you boot from is the right disk. If you set to boot from an unbootable device, it won’t boot and may display the error message: “Boot Device Not Found. Please install an operating system to your hard disk”. In such a situation, you can change the boot order in BIOS and let it boot from the bootable device. To do so, follow the below-given steps:

  • Restart the computer and then press the F10 key to enter the BIOS settings menu.
  • After opening the BIOS, go to the boot settings.
  1. Notebook computers: Select Storage > Boot Options.
  2. Desktop computers: Select System Configuration > Boot Options.
  • Proceed with the on-screen instructions to change the boot order.

Method 2: Perform Hard Reset

When you reset the device, it forces the system to clear and reestablish the software connections between the BIOS and the hardware. To perform a hard reset, follow the below-listed steps:

  • Turn off the computer and remove it from any port replicator or docking station.
  • Then, disconnect all external devices from your computer and unplug the AC adapter. Remove the battery as well.
  • Press and hold the Power button for about 15 seconds.
  • Then, insert the battery and plug the AC adapter back into the computer.

Note: Don’t connect any of the peripheral devices, such as USB storage devices, external displays, printers, etc.

  • Now, turn on the computer. When the start menu opens, select Start Windows Normally with arrow keys and press Enter.

Read: Why the External Hard Drive shows the Wrong Capacity?

Method 3: Restore BIOS To Default Settings

It may happen that your system is configured to boot from an unbootable disk. In such a case, resetting your BIOS restores it to the last saved configuration. Follow these steps:

  • Turn off the computer.
  • Wait for at least 5 seconds and then restart the computer. Repeatedly press the F10 key to enter the BIOS setup menu.
  • On the BIOS setup screen, press F9 to select and load the BIOS Setup Default settings.
  • Press F10 to Save and Exit.
  • Select Yes, then press Enter when asked to Exit Saving Changes.
  • Then, follow the prompt to restart the computer.

If the computer restarts normally, it means that issue is fixed. If it still displays the “boot device not found” error message, proceed to the next method.

Method 4: Fix And Rebuild Damaged MBR

If the MBR is damaged or has any issue, you may encounter the ‘Boot device not found 3F0 error’. You can fix it by following the below-given steps:

  • Press F8 while booting and check if you can get to Windows Recovery. If yes, go to Advanced > Command Prompt. If you couldn’t, you’ll need a bootable ISO.
  • In the Command Prompt Window, enter the following commands:
  1. bootrec /RebuildBcd
  2. bootrec /fixMbr
  3. bootrec /fixboot
  • Now reboot and check for the error status.

If the above steps didn’t fix the error, you need to perform one more step. Go back to the Command Prompt and type in bootsect /nt60 SYS or bootsect /nt60 ALL. If the first command doesn’t work, then try the other one.

Method 5: Reconnect Your Hard Drive

Reconnecting the hard drive may also help you fix Boot Device Not Found 3F0 error. Follow the below steps:

  • Turn off the computer.
  • Remove the power cable and battery.
  • Disconnect your hard drive and then connect it back.
  • Reassemble your computer and turn it on to see if the error persists or not.

recover deleted pictures

Method – 6 Reinstall the Windows/OS in PC

The last method to fix the 3F0 boot device not found error is to reinstall the Windows on the PC. In order to reinstall the windows on your machine you can refer to the standard process of installing OS.

How to install Windows 11 on a new PC (Link –

Make sure that you run Windows update to update all software, firmware, and drivers after reinstalling the Windows.

Contact Data Recovery Service Provider To Recover Data From Damaged Hard Drive

If you’re still stuck with the Boot Device Not Found 3F0 error, there might be a possibility that your hard drive is damaged. Using hit-and-trial methods in such a situation can cause further damage. Thus, to keep your data safe and secure, you can contact a professional and reliable data recovery service provider, like Stellar. The experts at Stellar have years of experience in recovering data from damaged hard drives.

Summing It Up

The hard drive 3F0 error may occur due to a variety of reasons. The methods mentioned above can help you fix the error. If the hard drive is physically damaged, you can contact Stellar Data Recovery Services to recover the data from the hard drive. The experts have required expertise to recover data from hard drives lost due to physical damage, corruption, booting error, or any other issue.

  1. Vikram Somawar November 4, 2019
    • Girish November 4, 2019
  2. Lucyy November 28, 2021

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