Accidentally started diskpart format on 2TB external drive, lost data

Hashim

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Hey everyone.

A few days ago, I accidentally formatted my external HDD with close to 2TB of data on it, which I obviously have no backups of. Suffice to say, I'm panicking right now, and would appreciate some help recovering as much as of the data as I possibly can - ideally all of it.

I was working with diskpart in the command line when I used the command:

Code:
format override fs=fat32
...assuming I had selected my 8GB flash drive, and realised I'd accidentally selected my 2TB external drive which had been assigned the same number after reboot (it had been a long night).

The format ran for just a minute or so, without progressing to 1%, before I realised what I'd done and did Ctrl+C. The external drive subsequently stopped showing up in My Computer, even after a reboot of my computer, although it was visible in Device Manager. Again in diskpart, I ran the command list volume, selected the raw volume with select volume #, and then did assign to assign it a drive letter. This made it discoverable to Explorer and My Computer, although it then gave the error that it needed to be formatted before it could be used. Clicking on it in My Computer returns the error:

H:\ is not accessible
The parameter is incorrect.
I then ran the trial ("Simple") version of GetDataBack on the drive, which took around 26 hours to complete before returning at least a hundred different sectors of varying sizes, including large portions of FAT32 and NTFS sectors, as shown below:

Imgur: The most awesome images on the Internet

The problem is that I'm not sure how GDB works, and I don't want to be limited to selecting just one of these file systems and lose the rest of the data. I'm also still holding out hope that because the format ran for such a relatively short time the partition table may still be intact, and that it's simply a matter of recovering that to get my drive back with all original folder structures/

After running GDB and leaving it hanging at the stage pictured above, I also tried using TestDisk and Recuva.

Recuva reported that it couldn't determine the file system.

After using it to run an Intel-type filesystem analysis for a few hours, TestDisk found two partitions that it deemed irrecoverable. Here is the log file: TestDisk log 1 - Pastebin.com.

Anyone know what else I can try? Is it just that I'm using these tools wrong? If not, are there other tools that will be able to recover the partition table and save me many days of recovering and reorganising terabytes of data using GDB (if GDB even functions that way)?

I would really appreciate the help right now. Thanks.
 

My Computer

Computer type
PC/Desktop
OS
Windows 7 Ultimate 64-Bit
CPU
Intel Core i3-2100 @ 3.10GHz (Dual-Core)
Motherboard
ASRock H61M-HVS
Memory
16GB DDR3
Graphics Card(s)
Intel Graphics HD (Integrated)
Hard Drives
Kingston 128GB SSD (OS Drive)
HITACHI 1TB HDD (Storage Drive)
You dont want to use file recovery as they are still there format just clears the table you need specific unformat software there is lots of free on google Unformat Hard Drive
 

My Computer

Computer type
PC/Desktop
OS
win 8 32 bit

My Computers

System One System Two

  • Computer type
    PC/Desktop
    OS
    7 X64
    CPU
    i5 8400
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x8gb 3200mhz
    Hard Drives
    various
    PSU
    pure power 11 400w cm
    Case
    Coolermaster
    Cooling
    cryorig m9i
  • Computer type
    PC/Desktop
    OS
    7x64
    CPU
    g5400
    Motherboard
    ga b365m ds3h
    Memory
    8gb ddr4 2400
    PSU
    xfx pro 450w
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