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Quick Fix 'The Disk Structure Is Corrupted and Unreadable' Without Losing Data

Updated on Jul 12, 2019 by Jean to Resource

Summary

It happens that when you try to access your drive or partition, you get the error message 'drive not accessible, the disk structure is corrupted and unreadable' in Windows 10/8.1/7. Given that, we will show you how to fix the issue and restore all your precious data from the inaccessible drive with EaseUS data recovery software in simple steps.

Cannot Access Drive: Disk Structure Is Corrupted and Unreadable

"Try to access a 2-year-old WD MY BOOK ESSENTIAL, but failed with an error saying 'the disk structure is corrupted and unreadable.' What's the matter? This issue is very frustrating as all my important data is stored on this drive. Anyone can show me instructions on how to recover data when the disk structure is corrupted and unreadable?"

Error "the disk structure id corrupted and unreadable"

"The disk structure is corrupted and unreadable" is one of the most common Windows errors that happen to external HDDs, memory cards, USB flash drives, and other storage devices. Why a properly working hard drive suddenly becomes inaccessible? Generally, the error disk structure is corrupted and unreadable" can be caused by:

  • File system errors: MFT (Master File Table) or DBR (DOS Boot Record) corruption
  • Connection issue
  • Unstable power supply
  • Hardware issue

Based on the possible causes, there are different solutions to the problem "the disk structure is corrupted and unreadable".

Fixes for "The Disk Structure Is Corrupted and Unreadable"

As you know from the information above, the error may result from minor issues like cable connection and power supply or be caused by relatively serious matters like file system errors and hardware damage. Thus, you can try the simple fixes first to exclude the minor issues:

  • Change the USB port/cable
  • Connect your external hard drive or other storage devices to another computer and check whether the problem remains
  • Connect your USB drives to the rear port which provides a more stable power supply compared to the front ones

If these simple fixes don't help, it's highly likely the error "the disk structure is corrupted and unreadable" is caused by file system errors or by hardware corruptions in rare cases. Don't worry. You have a high chance to recover your data and make your device usable again following the methods below.

Method 1. Recover Data and Format the Disk

Notice:
If there is nothing important on the problematic drive, you can format the disk directly to fix the error "the disk structure is corrupted and unreadable".

You may be recommended to try CHKDSK first in other articles. But actually, the most certain way to fix the error "the disk structure is corrupted and unreadable" caused by file system errors is to recover data from the inaccessible drive and then format the device.

Why?

CHKDSK can only fix a disk on which there is DBR corruption but no MFT corruption. Besides, even if CHKDSK can fix the problem for you, it may result in data loss on your external hard drive, USB flash drive, or other devices. Thus, the safest way is to retrieve your data and then format the device. The professional hard drive recovery software - EaseUS Data Recovery Wizard will help you recover data from an inaccessible drive, including RAW drive. To recover data from a hard disk on which the disk structure is corrupted and unreadable:

Step 1: Selecting the location

  • Launch EaseUS Data Recovery Wizard and select the drive where you lose your data.
  • Select the very hard drive when you open the file recovery software.
select the hard drive

Step 2: Scanning the drive

  • Click the "Scan" button. The length of the scanning time highly depends on drive capacity.
  • Wait patiently during this process.
scan the hard drive

Step 3: Recovering wanted files

  • After the scan, just choose what you need and click "Recover" button to recover lost data.
  • The "Filter", "Search" and "Extra Files" options are helpful for you to find the desired data from a hard drive.
recover data from hard drive

After getting back all your files from the disk, now you can format the disk to make it work again without any worries. There is more than one way to format a hard drive in Windows 10, here we present you the easiest one:

Step 1. Open "This PC".

Step 2. Right-click the disk reporting "the disk structure is corrupted and unreadable" and choose "Format".

Step 3. Assign a file system to your drive and click "Start".

Fix disk structure is corrupted and unreadable - format drive

Method 2. Check and Repair Disk Errors

You can either perform drive error checking or run CHKDSK in CMD. Both work exactly the same way. Checking disk works to repair any error found on your disk. It may help you fix the error "the disk structure is corrupted and unreadable" caused by DBR corruptions.

Option 1. Check Disk in Properties

Step 1. Go to "This PC". Right-click your drive and choose "Properties".

Step 2. Go to the "Tools" tab and click "Check" > "Scan drive".

The disk structure is corrupted and unreadable fix - perform disk checking

Option 2. Run CHKDSK in CMD

Step 1. Click "Start" and type cmd.

Step 2. Right-click "Command Prompt" and choose "Run as administrator".

Step 3. In Command Prompt, enter chkdsk E: /f. ("E" means the drive letter of the inaccessible partition and "f" is a CHKDSK parameter means it will fix any errors found on a disk. )

Method 3. Check Your Hard Drive's Health

If, after trying all the solutions mentioned above, the error "the disk structure is corrupted and unreadable" remains. You should consider checking the health state of your drive. A failed or failing hard disk may lead to many disk errors like "USB drive not showing up", "the file or directory is corrupted and unreadable", and the one in discuss. There are many ways to check the health of a hard drive, including using the manufacturer's tools, CHKDSK, and WMIC. Here we will show you how to use WMIC to check your drive status:

Step 1. Click "Start" and type cmd.

Step 2. Right-click "Command Prompt" and choose "Run as administrator".

Step 3. Enter the following commands in order:

Click to copy

If your disk status is not so well, send it for repair immediately.

The Bottom Line

Although there are many potential causes of the error "the disk structure is corrupted and unreadable", many users found the main cause is file system errors, which can be perfectly fixed by formatting the device. Since there are precious files existing on the hard drive, it's necessary to recover data with software like EaseUS Data Recovery Wizard and then perform formatting. Hope this guide is helpful for you.