External Hard Disk Unintialized , Not Recognized , Shows to have vary High Capacity

ImageWhen I connect My Transcend's StoreJet 25H3 1TB external Hard disk to My PC It does not shows in File explorer as a drive or partition.After going to the disk manager It shows as uninitialized as above.When I try to initialize the device in MBR or  GPT it gives the error 'data error (Data redundancy check)'.

I tries to recovery my files using 3 different recovery softwares .When I start the recovery process the program scans the the Hard disk as an 10000+ TB device.So even through fast scan it could take more than 30 days to fully scan the full disk.I Ran it for like 5,6 hours and any software  didn't got to 1%.When I tried to check bad sectors using software it causes the same issue .It show hard disk has 15000000000000+ sectors.I Can't repair the disk using CHKDSK through CMD as the hard disk doen't show as an drive.I tries to get the address through MOUNTVOL and the disk didn't show up there too.I found the device address (I think) through devince manager >Properties and Tried to repair using it.When I enter that command (Chkdsk "\\vol....." /f) command pormpt says cannot directly acces drive.I tried formatting through Transcend software and it gives an error.I tries cleaning disk and assigning a letter through command promt and it says cannot assign.Is there and other way to recover the data or at least the hard disk or Has my worst nightmare come through.

Few more things, When I plug in the disk to the PC , it take about 10 or 13 minutes show up as a device in disk manager(Only then functional key start flashing).When scaning via a recovery software the disk functiom key flashes meaning it is doing something.When I tried to repair using a software it says (EaseUS partition manager) unsupported format.Hard disk worked perfectly two days ago.The problem  occured when I tried to connect it to a friends Laptop.Didn't try wiping disk via 3rd arty software.Also tried uninstalling and reinstalling drivers.Another Same model Hard disk works perfectly fine. The hard disk is 3 years old.Thank You.

Hi,
I am Vinu, an Independent Advisor and a Microsoft user like you. I will try to help you with this issue.

Can you try the software mentioned here: https://www.transcend-info.com/Support/No-324

Also, this can be related to a virus or a voltage variation caused by another laptop. Let's try connecting to a different PC / device as well.

Also, attaching to any other OS (Say, Linux) you can try those options.
Vinu chandran

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I tried with those 3 and could not get any results.I tried using two devices. 

I will try with Linux and will give and update .

Thanks .



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I installed Linux ,but the OS didn't recognize the disk .When istalling Linux the PC identified the disk ,but it identified the disk as a 10000TB storage device.IT was possible to creat a partition table but I did not tried to creat partitions or install Linux on this drive.

Thanks.

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Mostly, if you create an EXT partition from Linux then connect it with Windows PC, it will ask you for reformat, then you can reformat as NTFS ( But this will delete all your data)

If you are planning to recover data, you need to contact Transcend as well once. This very much looks like an issue caused by some voltage issue, or some bad sectors in the initiation sector.
Vinu chandran

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In the installation process it don't create a partitions until I install Linux on the said partition.When I do try install Linux it gives an input output error.

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Very much looks like a defective hardware error. Any hope from Transcend side?
Vinu chandran

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No.They just said to take it to the original retailer and asked for replacement or repair.Repair is my only option now.Thanks for the reply

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Last updated April 19, 2025 Views 338 Applies to: