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How to Fix "The Disk Structure is Corrupted and Unreadable" Error without Losing Data?


Summary:

This page will share my own experience about how to fix "drive not accessible, the disk structure is corrupted and unreadable" error without losing data in Windows to you.
 
Generally speaking, "the disk structure is corrupted and unreadable" is a hard drive issue that happens when the computer tries to access a partition that has a corrupted or unreadable disk structure, thus resulting in a failed attempt to access it. Naturally, it looks quite severe and can really be a headache for some users. But that doesn't mean there is no solution.

 
We should know why this error happens before fixing "Disk structure is corrupted and unreadable" error. The causes behind the "Disk structure is corrupted and unreadable" error is more, such as unsafe ejection, power outage, damaged or RAW file system, physical damage. But in general, those reasons can be divided into file system error and physical damage.

How to fix the "the disk structure is corrupted and unreadable" error?

This passage will offer you a simple method to fix this error and recover data from inaccessible disk. For an inaccessible drive which contains useful data, we should recover data from it before fixing drive error. As long as the drive is not physically damaged, we can ask for help from the best data recovery software-Bitwar Data Recovery. It supports to recover data from inaccessible drive, recover data from RAW, formatted, corrupted drive, recover deleted files even if emptied from Recycle Bin, recover data from deleted or lost partition, etc.

Steps to recover data form inaccessible disk

As the inaccessible partition/drive still contains our precious data, so you must not try to format the partition on your computer, otherwise you are likely to lose your data forever!
 
Now we can rely on Bitwar Data Recovery Software that is helpful for us to recover data from inaccessible partition/drive. You can download the software and install it onto your computer, and follow the tips to get the free trial license in the software.

Bitwar Data Recovery for Windows download Bitwar Data Recovery for Mac download

 
Step 1. After installation, launch the software and choose the inaccessible partition that shows as RAW in the Type section and then click Next button.
 
Step 2. Choose the "Quick Scan" mode to recover lost files from the raw partition or device.

Note: After scanned, if you cannot find files on Quick Scan mode, back to here and try deep scan. The deep scan will search every sector of hard drive to find all existing files. But the scanning process will spend more time and will not have the original file name in the scanning results.


 
Step 3. Select the types of files you need to recover, you can choose all types to scan all files out from the raw disk. And then click Scan.
 
 
Step 4. After the scan, you can filter the files you want by file name, type, path and time. Then you can double-click the Thumbnail images of the files to preview them on Preview Mode. After the data you want, choose them and click recover to save to a different partition or external device.
 
 
With the above steps, the data you want is all restored and now you can fix the error if it is not a physical problem.

Solutions to the "the disk structure is corrupted and unreadable" error?

Solution 1: Reinstall the disk drive

In some cases, the corrupted and unreadable disk structure is caused by conflicts between the hard drive and software. Thus you can fix the issue by uninstalling and reinstalling the disk in Device Manager.
 
1. Open Device Manager.
2. Find and expand Disk drives section to locate the problematic disk. Right-click the drive and select "Uninstall" option and then confirm the action.
3. When the disk is uninstalled, click the icon "Scan for hardware changes", and then the uninstalled disk will be detected and reinstalled.
4. Restart computer and try if you can access the partition.

Solution 2: Unplug and re-plug the device

If you are receiving this error with external devices such as USB flash drive and SD card, it is simple to unplug it and insert it again after rebooting Windows. If you are receiving this error by internal hard drive, you should shut down system first. And disconnect all cables between HDD and motherboard, then reconnect them.

Solution 3: Run CHKDSK (Check Disk)

Check Disk utility is provided by Windows to scan and fix hard drive errors. However, chkdsk may do harm to data on the disk. Thus you should recover data first if files in the unreadable drive are of great importance.
 
1. Open File Explorer and find the corrupted drive you want to repair, select Properties from the context menu.
2. Choose Tools tab and click Check button under Error checking section. This option will check the drive for the system errors.

3. Select Scan drive to run disk check for selected drive.

Solution 4: Format the unreadable partition in Disk Management

1. Run "diskmgmt.msc", then Disk Management appears.
2. In the disk map, right click the partition of which the master file table is corrupt to choose "Format".
3. Then in the new presented window, customize the volume label, file system, and cluster size. Windows will ask you do you really want to do the format, please confirm and start the format.
 

Solution 5: Send the failed hard drive to a local data recovery company

If the above 4 solutions all failed to fix "Drive not accessible, the disk structure is corrupted and unreadable" issue, the hardware drive may have a physical failure that you cannot repair. Please send it to a local data recovery company for help.



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