5 Ways to Fix the Fatal Device Hardware Error, No Data Loss

When 'The request failed due to a fatal device hardware error' occurs on your internal or external HDD/SSD, USB flash drive, etc., your device will become inaccessible. In this case, you need first fix the fatal hardware error first with 5 methods here. Then, apply EaseUS file recovery software to restore all valuable files.

Table of Contents

Stay calm if you are receiving 'The request failed due to a fatal device hardware error' message while trying to access or open a hard drive, external disk, or USB device on your computer. Here, on this page, you'll learn how to fix this error on your own in the following two parts:

Overview of The Request Failed Due to a Fatal Device Hardware Error 

Definition: What does fatal device hardware error mean? The error message "The request failed due to a fatal device hardware error" may appear on your computer screen. When you see this error, it means your operating system cannot get access to the hard drive/SSD or unable to perform the read and write operations on it.

the request failed due to a fatal device hardware error

So what caused this error and how to define if you are having this error on your drive? Check the table below:

Causes Symptoms
  • USB cable loose connection, or is faulty.
  • Too many bad sectors on the disk.
  • System or hardware fault.
  • Hard drive is dying.
  • "X: is not accessible. The request failed due to a fatal device hardware error."
  • "Error 0x800701E3: The request failed due to a fatal device hardware error."
  • "Virtual Disk Manager: The request failed due to a fatal device hardware error."

5 Ways to Fix The Request Failed Due to Fatal Device Hardware Error

So how do I fix "the request failed due to fatal device hardware error" on my external hard drive? Here we listed 5 effective ways that can help:

  1. [1] Check the connection
  2. [2] Verify the SMART status
  3. [3] Check and repair bad sectors
  4. [4] Update storage device disk driver
  5. [5] Send problematic device for repair

Fix 1. Check Hard Drive Connection

  • Check if the hard drive connection cables are loose, if yes, tight the cables.
  • Reconnect the external hard drive or switch to a USB port.
  • Change a new USB cable if the old one is broken.
  • Connect to another new computer if possible.

If all attempts come to nothing, you need further troubleshooting behind.

Fix 2. Verify SMART Status

SMART stands for Self-Monitoring, Analysis, and Reporting Technology. By checking the drive's SMART attributes, it can help to detect whether the problematic device is damaged, or how severely it is damaged.

This is how to check a hard drive SMART status:

Step 1. Press Windows + X keys to open Windows Command Prompt as administrator.

open command prompt with the admin privilege

Step 2. Type wmic diskdrive get status and hit Enter.

Step 3. The command returns four different statuses: "OK", "Bad", "Unknown", and "Caution".

  • Ok: Do not worry, try fix 3 and you can restore the hard disk into a normal state.
  • Bad, unknown: You can fix the error by trying fix 3,4,5. Meanwhile, data recovery is urgent.
  • Caution: It suggests the hard drive corruptions at a high level, it's better to take the disk for repair. 

Fix 3. Check and Repair Bad Sectors

Bad sectors are not as horrible as you think unless they are spreading all over the hard disk. We often use the Windows DiskPart utility to check and repair some file system corruptions and hard disk bad sectors, and it's worth a try when facing a majority of hard drive inaccessibility issues.

This is how to run the Diskpart command to fix bad errors:

Step 1. Press Windows + S keys, type cmd in the Search box.

Step 2. Right-click Command Prompt, select "Run as Administrator".

Step 3. Type chkdsk F: /f  or chkdsk F: /f /r /x and hit Ener.

(F: represents the drive letter of the hard drive in trouble.)

Fix bad sectors on prolematic disk with fatal device hardware error

The syntax for check disk:

  • /f fixes system errors.
  • /r locates bad sectors and recovers readable information.
  • /r open handles to the drive that are invalidated.

Fix 4. Update Disk Driver 

If the disk driver of the problematic storage device is outdated, you may also meet a fatal device hardware error. You can also try to update the disk drive driver to fix this error.

Here are the steps:

Step 1. Press Windows + S keys, type device manager in the Search box. 

Step 2. Expand "Disk drives", locate and check the state of the hard drive with fatal device error.

See if it's covered by a yellow exclamation mark as shown below, if yes, update the disk driver with Step 3.

Check Second hard drive driver state in Device Manager.

Step 3. Right-click the problematic hard drive and select "Update driver".

Update hard drive driver.

Step 4. Click "Automatically search for driver software online" and wait for the process to complete.

After this, you restart the computer and check if you can access the device again.

Fix 5. Send Problematic Device for Repair

If you've tried all the above methods from 1 to 4, but none of them worked. Here, you have the last option which is to send the disk which contains a fatal device hardware error to a local repair center or the manufacturer for repair:

  1. 1. Contact the hardware manufacturer for help.
  2. 2. Find a local repair center and send your device for repair.

3 Steps to Recover Data After Fixing Fatal Device Hardware Error

When 'The request failed due to a fatal device hardware error' occurs, your HDD, external hard disk, or removable disk turns inaccessible. You must fix the error first.

After fixing this error, if your disk data is still missing, reliable hard drive recovery software -  EaseUS Data Recovery Wizard can help. It enables you to fully scan the problematic or inaccessible device and find all valuable files at one time:

3-Step Guide to Recover Data After Fixing Fatal Device Hardware Error:

Step 1. Scan the hard drive partition

Open EaseUS Data Recovery Wizard, select the hard drive partition where you lost data and click "Scan".

Step 2. Preview found hard drive data

The Filter and Search features can help you access lost files via file types, file names or extensions. Double-click to preview these lost files.

Step 3. Recover lost hard drive data.

Select all the lost hard drive files and click the "Recover" button to save them to another secure location.

Stop Using Fatal Device, You Can Fix The Hardware Error

Remember, whenever you have this problem with your storage devices, stop using the drive first. On this page, we discussed what is the request failed due to a fatal device hardware error, common symptoms, and 5 reliable ways that work to fix your problematic device to a normal state.

If you have valuable files saved on the problematic device, remember to run best data recovery software - EaseUS Data Recovery Wizard and restore all your data immediately after fixing this error.

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Updated by Tracy King

Tracy joined in EaseUS in 2013 and has been working with EaseUS content team for over 7 years. Being enthusiastic in computing and technology, she writes tech how-to articles and share technical solutions about Windows & Mac data recovery, file/system backup and recovery, partition management and iOS/Android data recovery.

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Written by Jean

Author Jean has been writing tech articles since she was graduated from university. She has been part of the EaseUS team for over 5 years. Her special focuses are data recovery, disk partitioning, data space optimization, data backup and Mac OS. By the way, she's an aviation fan!

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