External Hard Disk Drive Not Formatted - RAW External HDD Requires Formatting

Several Cases of External Hard Disk Drive Not Formatted Error

"Hello, I made my Samsung external hard disk drive into 4 partitions that are respectively in 20GB, 50GB, 128GB and 175GB. Then I transferred all files from my USB drive to these four partitions. However, I have a problem with my 175GB partition because it shows not formatted error when I try to access the data inside. How can I fix the not formatted error and get back the data inside?"

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"My Seagate external hard drive that I have used for about one year ran into a problem recently. When I attempted to open it, Windows pops up disk in drive F is not formatted do you want to format it now? I know data will be erased after formatting, so I plugged out the external hard drive and tried to connect it into the other USB port but it still didn’t work. What should I do now? "

How to Solve External Hard Disk Not Formatted Problem?

Most important thing you need to do: don’t say YES to format the external hard disk drive.
Then try to get data off the external hard disk drive with the help of not formatted recovery software.
This is an advanced and reliable freeware that is specialized in recovering any lost file from not formatted external hard disk drive and other types of storage devices.

The advantages of this software
User-friendly interface
Free download and recover all lost files             
Preview all files before you confirm to recover them

The disadvantages of this software
It is a data recovery application, so you can only get data off the external hard disk drive that has not formatted error but you can’t solve the not formatted problem with this software.
 

Tutorial: How to Use Not Formatted Recovery Software?

Connect the external hard disk drive to your computer.
Free download the not formatted recovery software to restore files from not formatted external hard disk drive.
After installing the software to your computer, you can see different recovery modules on the main screen. Please follow the steps below,
Step1. Choose the recovery module to start data recovery.
Step2. Choose the external hard disk drive to find all lost files.
Step3. Preview all files after scanning.
Step4. Recover all files to your computer hard disk.
Refer to Not Formatted Data Recovery to learn more information.

Reasons for External Hard Disk Drive Not Formatted Error

You may know every new external hard disk needs to be formatted so that it can be used with a particular file system either FAT or NTFS. However, when your external hard disk shows not formatted error, the file system of the drive is neither FAT nor NTFS but becomes RAW. Therefore, when such error occurs on your external hard disk drive it indicates the disk drive you are trying to access is not prepared for use with your Windows OS, or it has been corrupted due to this and that kind of reasons. 

References

External hard drive not readable

USB drive not readable

Verbatim external hard drive recovery

Deleted external drive recovery

Flash drive raw file system