How to recover data from RAW hard drive partition?

I have a 2TB WD external hard drive that has stored lots of my important data. However, when I used it on my computer yesterday, suddenly, an error message popped out "Drive not formatted, do you want to format it now?" And I immediately checked its "Properties" and found its file system has changed into "RAW". It seemed to be the issue. Do you have any way for me to recover RAW partition or recover data from RAW hard drive?

RAW drive error message

It pops up an error message as below when accessing the RAW drive/partition by double-clicking it.
Invalid media type reading drive. Abort, Retry, Fail?
Windows may ask if you want to format the drive, such as a warning reads "The disk in drive (X) is not formatted. Do you want to format it now?".
File names contain "weird" characters.
"Sector not found" messages.
Also a CHKDSK tool will complain that it is unable to perform a RAW file system recovery. The type of the file system is RAW. CHKDSK is not available for RAW drives.

Sometimes people call it raw drive or raw file system. The properties of the drive often shows 0 bytes while there were important files, photos stored there before (Right click the drive and select "Properties") and the file system shows RAW. RAW file system is not really a type of file system but presents a problem of your drive or partition. We know often used file system like NTFS, FAT16/FAT32 or EXT2/EXT3. So what is RAW file system? Just a system error that makes your partition become RAW and you cannot access files there without data recovery software.

Free RAW drive data recovery software

M3 Data Recovery is a free RAW data recovery software which provides a quick way to recover data from RAW hard drive, RAW external hard drive, RAW USB flash drive, RAW memory card, RAW SD card, etc. in Windows XP/Vista/7/8/10.

M3 Data Recovery provides two solutions to solve RAW drive data recovery problem:

Solution 1 - Recover data from RAW hard drive partition

Solution 2 - Recover RAW drive or fix RAW partition without data loss

Solution 1: How to recover data from RAW hard drive partition?

Step 1: Download and install M3 Data Recovery Free on your computer.

Step 2: And then run M3 Data Recovery Free.

Step 3: Choose the Data Recovery module.

Free RAW data recovery software

Step 4: Choose RAW drive/partition and click Next to scan, All files will be found in minutes.

Scan RAW hard drive partition with M3 Data Recovery

Step 5: Select the files you want to recover from RAW hard drive and then save them.

Recover data from RAW hard drive partition

Besides data recovery from RAW hard drive partition, M3 Data Recovery Free can also can recover deleted files, recover data from formatted hard drive, recover data from formatted USB flash drive, recover deleted or lost partition, etc.

Solution 2: How to recover RAW drive or fix RAW partition without data loss

Step 1: Launch M3 Data Recovery and choose RAW Drive Recovery module on home window.

Step 2: Select RAW drive or RAW partition and click Next to continue.

RAW drive recovery software

Step 3: M3 Data Recovery starting to scan RAW drive/partition.

Scan RAW drive with M3 Data Recovery

Step 4: After the scan completes, please click "Fix Drive" to recover RAW drive or fix RAW partition without data loss.

Recover RAW drive or fix RAW partition without data loss

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