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Unable to Determine File System Type on the External Hard Drive
'I inserted my external hard drive on the computer to transfer some data, but suddenly my computer shut down and reboot, then I try to open my external hard drive on the computer,but the computer ask me to format it, and says it is unable to determine the file system type. I need my data on the external hard drive. Is there any way to help me repair the external hard drive and get back my data?'
This problem often happens to external storage device, the file system of the device will become raw file system or other file system type which can not be recognized by Windows. So to repair the error device, you need to convert the file system into file system types supported by Windows, NTFS, FAT32, exFAT, for example.
You can change the file system type with CMD command prompt. While this process will format the device, you need to recover data before that if you have needed data on it.
The external hard drive becomes unreadable and corrupted due to carelessly disconnecting or powering down the industry without following the eject drive protocol. You can fix corrupted hard drive with a quick scan on the PC with the disk checking utility and its drive repair function. Worst-case scenario, if you cannot fix the disk, then there is a way to recover all the valuable data, which. The most recommended tool to change the format of external hard drive without data loss is by using SysTools NTFS Fromatted Hard Drive Data Recovery Software. It is a complete solution to change the file formats from one to another, hence a user does not require to. Plug your external hard drive into your PC, go to 'This PC,' then right-click it under 'Devices and drives' and click 'Format.' Here you'll be presented with a number of options, but the ones we're focusing on are 'File System,' which you want to change to exFAT, and 'Allocation unit size.'.
How to Recover Data from Unrecognized File System Device
- Determining file system in Windows 2000, XP, Vista, 7, and 8. Open My Computer.; In My Computer, Computer, or This PC, right-click the drive you want to view and select Properties.; The Properties window should list the file system on the General tab.As shown in the picture below, the file system of this computer is NTFS.
- Determining file system in Windows 2000, XP, Vista, 7, and 8. Open My Computer. In My Computer, Computer, or This PC, right-click the drive you want to view and select Properties. The Properties window should list the file system on the General tab. As shown in the picture below, the file system of this computer is NTFS.
You need a data recovery program to recover your data from an unrecognized file system device, do choose a reliable one, because some may do harm to your data and computer, here I recommend iCare Data Recovery pro, which is a effective, 100% safe data recovery tool. Due to its read-only system setting, it won't do harm to your computer or change the file type of your data. You don't need to worry about the data recovered is not readable.
iCare Data Recovery pro has a fantastic compatibility, it supports all the Windows system. If you are Windows users, you can free download here.
And you can follow the steps to recover the data from the device with unrecognized file system type.
Step1: Free download iCare Data Recovery pro at it website: iCare Recovery. Run the program.
Step2: Enter 'Deep Scan Recovery' or 'Raw Drive Recovery' mode. Select your device to scan.
Recover data from unrecognized file system device with iCare Data Recovery Pro
Step3: Preview the found data, and select those needed to recover. Store them to another place.
Recover data from unrecognized file system device with iCare Data Recovery Pro
Instructions to Repair Unrecognized File System Device
Attention:
Do not put a wrong number on the command window when you run CMD command prompt, a mistake can make your system drive get effected
This process will formatted all your data on the external hard drive, remember to recover you data first if you have need them.
Repair device with unrecognized file system with CMD
View External Hard Drive Files
Step2: Type'format M: /fs:ntfs'(M is the drive letter of your RAW external hard drive)
After this process finished, the file system of the device will be converted into NTFS, you can also change the 'ntfs' in the command line into 'fat32', then you can convert the file system into FAT32 file system.
Related Articles
One of the more common reasons that people find that they require external hard drive data recovery has nothing whatever to do with either hardware failure or user error, it is simply down to having an external hard drive which is using an in appropriate file system for their requirements.
External Hard Drive Data Recovery
The file system is not the same thing as the operating system. Windows (an operating system) can use more than one type of file system. The file system is essentially the means by which the data is organised on your drive, how it is stored and subsequently retrieved when needed. Any storage device will require a file system in order to present itself to your computer and its operating system as a recognisable and usable store for your data.
Over time a variety of different file systems have appeared and evolved. By and large the file system is something that is invisible to the computer user however there are some important qualities of each which it is worth taking a moment to understand in order to avoid a sudden and highly unwelcome requirement for some logical external hard drive data recovery. Set adobe acrobat as default. The potential problems associated with unsuitable file systems tend to appear when a new storage device is introduced to your computer, most commonly of course when you use an external hard drive.
Most computer users will, at one time or another encounter one or more of the following 3 file systems; FAT32, NTFS and HFS+.
To take each in turn:
This was the originally the file system used by early versions of Windows. It has the great advantage that both PCs and Macs can both read from and write to a storage device which uses the FAT32 file system. There is very little in the domestic computing world that cannot make full use of FAT32.
Why Might FAT32 Leave Me Needing External Hard Drive Data Recovery?
FAT32 has one massive draw-back; it cannot support a file which is larger than 4GB in size. At first sight this may not seem like a significant problem, 4GB would be a huge file. Until relatively recently it wouldn't have been a problem, however these days files can routinely extend beyond this size (notably media and email database files, such as an Outlook PST file). Usually when an attempt is made to try to write a file that is too large to a FAT32 formatted volume it will simply be denied and an error message displayed, however once in a while it will cause the FAT32 volume to become corrupted and subsequently inaccessible, unfortunately this is not an uncommon occurrence.
This file system has been the standard in use with Windows since around the mid 1990s. A PC with Windows can read from and write to a storage device formatted with NTFS. A Mac however can only read from a NTFS storage volume, it cannot write to such a device. NTFS does not have any limitation on the maximum size of file which can be stored on it (for all practical applications).
Developed by Apple and used on their Macs (and can also be used to format iPods). A PC can neither read nor write directly to a storage volume which has been formatted as HFS+ (although there are software packages which can be used to achieve both).
Descargar imovie windows. These days the vast majority of external hard drives will come factory set with NTFS. They will usually also include some type of on-board software which allows you to convert it to FAT32 and / or HFS+. Which is the correct choice will of course depend upon how you intend to use the external hard drive. If you will only ever be connecting the external to a Windows PC then it makes sense to stick with NTFS. Similarly if you are exclusively a Mac user then you should use HFS+. If you are one of the increasing number of people who use both, then FAT32 is the obvious choice but, of course, never forget the maximum file size limit or you may find yourself in sudden need of external hard drive data recovery.
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