How to Fix CHKDSK Is Not Available For RAW Drives

How to Fix CHKDSK Is Not Available For RAW Drives

Summary: Got error messages “’the type of file system is RAW. Chkdsk is not available for RAW drives”? If “Yes” then this tutorial article will help you to fix CHKDSK is not available for RAW drives as well as recover data from raw file system. Here you will find most effective and powerful solutions that can help you to fix the error message.

Overview of error ‘The type of file system is RAW. Chkdsk is not available for RAW drives’

Chkdsk.exe is the command line interface for CHKDSK tool and it verifies the logical integrity of a file system. However, if CHKDSK come across inconsistencies in file system data, then CHKDSK tool can be used to repair that file system data, assuming that file system data is not in read-only mode.

But, if the volume system type information is unavailable and if you run the CHDSK command against the volume, then it will display the following error message:

The type of the filesystem is RAW. Chkdsk is not available for RAW drives.

Let us take one user example:


Hi Dear,

 I am Trying to recover data from HDD 400GB. I am using Win 7. It says ‘YOU NEED TO FORMAT DRIVE BEFORE USE’. I have used a ‘find and mount’ software but no luck. Then went for cmd- CHKDSK /F, but it says ‘ CHKDSK IS NOT AVAILABLE FOR RAW DRIVE’. So could you help me for recovering data ?

some people suggest me to go for Linux SUSE, is that be only solution?

                                                   – Original Post From Microsoft Community

Why we get error Chkdsk is not available for RAW drives?

Well, the main reason behind the occurrence of this error is RAW drive. When your hard drive, external hard disk, SD memory card, USB flash drives fails in such a way that it becomes RAW and this makes these devices to throw error – Chkdsk is not available for RAW drives.

Additional Reading: [Solved] Unknown USB Device (Device Descriptor Request Failed) in Windows 7/8/10

What makes drives to become RAW?

Below, find out the causes by yourself.

The drives can turn into RAW due to:

  • Ejecting the drive improperly from PC.
  • Virus attack.
  • Boot sector or broken partition table.
  • Loose connection due to problem in computer.
  • Availability of bad sectors.
  • Exceeded read/write lifespan.
  • Sudden power failure while you were accessing files from the drive.
  • Hardware failure.
  • Corruption to drives.

Additional Reading: Complete Steps To Fix ‘USB Drive Detected But Not Accessible’ Issue

Common scenarios of “chkdsk is not available for RAW drives”

Sometimes when a damaged volume lose its files system then it might throw the error message “chkdsk is not available for RAW drives” , but beside this error message, you may also get different error messages such as

  • The disk in drive X: is not formatted.
  • The volume X: is not formatted. Do you want to format it now?
  • Drive X: not accessible. The file or directory is corrupted and unreadable.
  • There was an error accessing drive X:. The disk is not formatted.
  • The volume does not contain a recognized file system.

Additional Reading: Learn To Fix/Remove/Format “Write Protected” USB Drive

Media Storage Devices that can throw CHKDSK Error – The Type of the File System Is RAW

Most of the time, the error message shows “The type of the file system is RAW. CHKDSK is not available for RAW drives”.

In general, you might get such type of error messages on any storage media devices, such as:

  • SD memory card – chkdsk is not available for RAW drives.
  • External hard drive CHKDSK is not available for RAW drives.
  • CHKDSK reports raw error on drives like USB flash drive (pen drive, memory sticks, etc), Micro SD card or hard drive.

When you receive such kind of CHKDSK error messages on any digital devices, then usually you may run CHKDSK to fix disk for errors or bad sectors. But when volume system information of the files changes to RAW file system, then it avoid your from running the CHKDSK for error checking and thereby it display the error messages CHKDSK is not available for RAW drives.

Well, when you receive such error message, then what approach should you take? Well, in my suggestion, you must first try to recover data from the device and then you should look for the solution to fix the error message.

Additional Reading: Learn To Fix/Remove “Read Only” Error of USB, SD Card & Hard Drive

Recover Data When CHKDSK Reports ‘The type of file system is RAW. CHKDSK is not available for RAW drives’

The tool that can help you to recover lost or inaccessible files from raw file system is Photo Recovery. This tool will allow you to get back lost, deleted, inaccessible digital media files such as photos, videos and audio from hard drive, external HDD, memory cards, digital camera, USB flash droves and other media storage devices.

This photo recovery software can easily recover media files from drives that show ‘The type of file system is RAW. CHKDSK is not available for RAW drives’ error message. The program offer preview option that is available in free trial version, it helps you to check if your lost files are recoverable or not from the RAW file system.

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Steps To Recover Files From Drive That Show CHKDSK Is Not Available For RAW Drives

Step 1 – Install “Photo Recovery’ tool and launch it. Click on “Recover Photo, Audio & Video” tab to recover images, songs and videos files from any SD card, external USB drive or computer hard drive. Connect the media to your computer and then perform the process.

Step 2 – Select the drive from which you want to recover files. The external media will be shown in the list, if not then click on “Refresh Drive” button. Now select the desired drive to scan and then click on “Scan Now”. If you want to customize the recovery on the basis of file types then click on “Advance Scan”.

Step 3 – In the Advanced Scan you will have the option to scan as per to the file list, such as Photo, Video and audio or you can also select the data range from the storage device. This option reduces the scanning process time.

Step 4 – Once you click on “Scan Now” button the software will show that scanning is in process. The recovered files listed in a tree structure on the left side of the window panel.

Step 5 – After scanning, you can select the files to preview them and then you can click on “Recover” button to finally save them on your computer.

Step 6 – Select the desired location on your computer to save the recovered files. The screenshot shows that the recovered files are being saved.

Solutions To Fix CHKDSK Is Not Available For RAW Drives

Alright! Once, you restored the data from the device, it is time to fix the error messages CHKDSK Is Not Available For RAW Drives.

Solution 1: Check the Connection Issues

The very first step that you must take is to check all the connections between your computer and hard drive. If your hard disk is not connected properly or cables become too loose to work as normal, then you might get this error message.

Solution 2: May be Lifespan of Read/Write Process of Drive Has Been Exceeded

Every Disk has a lifespan and many hard drives also have limited read/write lifespan. So, if the drive that you want to repair has been used for several years, then you must consider the usage of the drive and check whether it has reaches its service lifetime. If so, then you do not have any option but to replace the drive with new one.

Additional Reading: 2 Best Ways to Recover Photos From Crashed Hard Drive on Windows/Mac

Solution 3: Run Anti-virus Program to Remove Viruses

If your disk is infected or attacked by virus, then it is time to scan your hard drive with anti-virus program and remove the viruses from the drive. If you do not have any reputed and updated antivirus tool, then it is time you’d better go ahead and take action right now.

Solution 4: Try to run CHKDSK by typing CHKDSK X: /r instead of CHKDSK X: /f

When you perform CHKDSK command to repair the error of drive, then usually you type the command CHKDSK X: /r. But in this error case, instead of typing the command CHKDSK X: /r type CHKDSK X: /f. may this can help you to troubleshoot the problem.

Note: Here X: is the letter name of the drive. So, you must give right hard drive letter name as per your case.

Additional Reading: How To Recover Media Files From Memory Card Using CMD?

Solution 5: Format the RAW Drive Using Disk Management

If above all solution fails, then you have left with no choice, but to format the disk. But remember that formatting the drive will erase all data stored within it, hence, you must make sure that all important data in this drive have been backed up already.

But, if you do not have any important data on the drive, then formatting the drive is the most recommended solution to get rid of this problem.

Here how to format the disk using Disk management:

  • Click Start and then click on Disk Management (Windows 10/8). Click Start > Right click on My Computer and then click on Manage (Windows7/Vista).
  • This will open Disk Management.
  • Now right click on your hard drive that you want to format card and select Format option.
  • Next select NTFS file system and then click Start to reformat RAW drive to NTFS.

Additional Reading: How to recover deleted photos, music and video files from USB flash drive on Windows/Mac?

Solution 6: Resort to Expert

If all above solution fails even the formatting the RAW drive using Disk management fails, then you’d better resort to expert or carry the drive to local computer repair shop. May be they can help in some other way.


Since, the error message CHKDSK is not available for RAW drives can occur due to many several reasons, you must be always ready with the solution to fix it. You can follow the solutions that are mentioned above to fix CHKDSK is not available for RAW drives error message. These solutions have helped many users and I hope it will work for you as well.

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[99.9% Working] Solutions to Fix CHKDSK Is Not Available on RAW Drives Error
Solutions To Fix CHKDSK Is Not Available For RAW Drives. 1. Check the Connection Issues. 2. Check Drive Lifespan. 4. Format the RAW Drive Using Disk Management and more.
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Rescue Digital Media
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