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How to Fix "The Volume Does not Contain a Recognized File System"


If you received "The volume does not contain a recognized file system" in USB/external hard drive/partition in your computer, don't worry. This article offers solutions to fix the issue. You can recover data from the RAW hard drive or inaccessible USB/external hard drive/SD card with Bitwar Data Recovery Software.

What is "The Volume Does Not Contain a Recognized File System"

During the use of the computer, many users may encounter the issue of "The Volume Does Not Contain a Recognized File System". And it occurs not only on the computer's hard drive, but also on external devices such as external hard drives, USB flash drives, and SD cards.
Now, we'd like to tell you the good news - this problem can be fixed and all data saved on the inaccessible drive can be recovered.
First, to avoid damaging important files lost by the storage device, we will show you how to recover data from a damaged disk or external device.

The Volume Does Not Contain a Recognized File System

What is the RAW file system?

The file system on PC is used to manage how data is stored and retrieved. Without a file system, information stored on the storage device would be a mix of large amounts of data which will lead to inaccessible files. Information can be easily isolated and identified by dividing the data into sections and naming each one of them.
The structure and logic rules that used to manage the groups of information and their names is a file system. There are many different kinds of file systems, including FAT (FAT12, FAT16, FAT32), exFAT, NTFS, HFS, HFS+, ext2, ext3, VMFS, UDF, etc.
RAW is the default file system of CD-ROM recognized by the operating system. When burning DVD, you can see a RAW mode that extracts user data and subchannel data.

However, other storages such as hard drives and USB drives are formatted as FAT or NTFS. If storage devices become RAW, then it can't be accessed, as RAW is regarded as an error of file system. If you try to open RAW partition, you will get an error messages such as "You need to format the disk in drive G: before you can use it." 

Why does "The Volume Does Not Contain a Recognized File System" problem occur?

The following reasons could lead to file system unrecognized problem:

  • reinstallation of system.

  • getting attacked by virus.

  • users' misapplication.

  • abnormal shutdown of computer.

  • file system conversion failure.

  • accidental deletion of necessary system files.

  • physical failures like bad sector.

  • unstable or insufficient power supply.

The importance of recovering data in advance?

Before resolving "The volume does not contain a recognized file system" error, all you need to do is find a RAW drive recovery software to get back the files. Offering powerful and easy RAW recovery solution, Bitwar Data Recovery allows you to recover lost data from the RAW drive directly, such as digital camera, hard drives, SD cards, Memory cards, phones, media players and portable drives. It can also recover audios, videos, pictures, archives, emails, and documents from these devices.

How to recover data from the raw partition?

Download and install Bitwar Data Recovery on your Windows, and then follow the guides to recover data from the volume does not contain a recognized file system (raw partition).

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

Step 1. Select the raw partition or device

Launch Bitwar Data Recovery software on your Windows. Select the raw partition or devices where you want to restore important data and click "Next".

The Volume Does Not Contain a Recognized File System

Step 2: Select the Scan Mode

You can choose Quick Scan mode to recover lost files. If files are not overwritten by other data, files can be fully recovered.
If you cannot find files through Quick Scan, try DeepScan. Deep Scan will search every sector of the hard drive to find all existing files. But the scanning process spends more time and will not have the original file name in the scanning results.
If you perform the partition a quick format, select Formatted Recovery on this step.

The Volume Does Not Contain a Recognized File System

Select the exact type of files you have lost, you can also choose Select All Types. Then click Next to start scanning.

The Volume Does Not Contain a Recognized File System

Step 3: preview and recover lost files

After the scan, all the scanned file will be listed. You can filter the files by the file name, type, path and time, you also can preview them one by one to make a selective recovery. Finally, select the files you want and click the "Recover" button to save it to another partition or external device.

The Volume Does Not Contain a Recognized File System

As you can see, the lost files have been recovered with the help of Bitwar Data Recovery. Then you can fix "The Volume Does Not Contain a Recognized File System" error.

How to fix volume does not contain a recognized file system error?

This section provides two solutions to fix the file system issue.  If you have backed up or recovered your data, you can try these solutions below:

Solution 1: Format the volume that contains the unrecognized file system

The most direct and easy way to deal with RAW partition is formatting it to NTFS, FAT32 or exFAT. You can choose file system format based on your actual condition, for example, the hard drive usually adopts NTFS, while USB drives like SD card and USB flash drives use FAT32 or exFAT. Before formatting the drive, you may also need to run anti-virus software to scan the disk and eliminate virus and malware.
Warning: Formatting will erase everything on the partition, you should recover them first before trying to format it.
Format RAW Partition to NTFS

  1. Plug the inaccessible disk to the computer so that it can be detected.

  2. Open This PC/Computer > Find the RAW partition;

  3. Right-click it by choosing Format > Select the file system - NTFS and rename it;

  4. Click Start > OK.

After this, your raw partition has been converted to NTFS, then you can reuse it again.
Note: you'll get an error message like Windows was unable to complete the format or The disk is write-protected if the disk is read-only or gets damaged. In that case, you should fix that issue before formatting.

Solution 2: Update USB driver

You can update USB driver on Windows for your flash drive. Restart your PC after this configuration.

  1. Press Win + R and run devmgmt.msc as administrator.

  2. In the Device Manager, find Universal Serial Bus controllers and unfold, right-click Generic USB Hub and click Update Driver Software.

The Volume Does Not Contain a Recognized File System

Solution 3: Run Chkdsk for the drive-in question

Chkdsk is a useful utility provided by Windows, which is able to check and repair volume errors in many cases. However, it should be noted that chkdsk process may also damage the file system and result in files cannot be recovered completely.

  1. Double click this PC icon from desktop to open File Explorer.

  2. Find and select the volume that is not accessible, then right-click it to select Properties.

  3. On the Properties window, click the Tools tab. Then you can see the Check button under Error-checking. Click the Check button. 

The Volume Does Not Contain a Recognized File System

You can see the Error Checking window popping up, select Scan drive

The Volume Does Not Contain a Recognized File System

It may take a while to finish the disk check, please wait patiently.


Though Bitwar Data Recovery can help you get back all of your important data from the RAW partition, there is still possible to lose them forever. So please try your best to avoid the volume does not contain a recognized file system error. The things you should notice:

  • Do not to unplug your removable device from computer forcibly.

  • Don't connect your removable drive to and manage it on a computer arbitrarily unless you can confirm its security.

  • Don't open unsolicited emails and links without checking its safety.

  • Choose to manage computer hard drive/removable disk with the help of reliable software.

  • Remember to back up your important data regularly to a safe location.

I hope you all can get rid of The volume does not contain a recognized file system error and the disturbing RAW partition error. Don't forget to download the Bitwar Data Recovery software to recover your data.

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

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