Unallocated partition after HDD plugged in PC (was external)

Toorop68

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Jan 3, 2016
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Hi all,

Sorry for the strange subject, but it is a bit tough to put in words... Here is my problem:

I have an External Hard Drive, Bufallo HD HX2.0TU3, 2TB. Basically when plugged in, it displays 2 Drives: one which is 650MB with Utiliys on it, and then the other drive with the 1,8 TB remaining.

One of my game is installed on this external HDD, and yesterday, when I was playing it, the HDD stopped working, and was not recognized anymore.

It was not the USB's fault, but the Power Adapter: when plugged in, the HDD would start spinning, and the stop after a few seconds.

I opened the case, and directly plugged the HDD on my Computer. It directly worked, but only the "first partition" is recognized, the one which is 650 MB, the other one appears in Disk Management as Unallocated. I thought it's because no Letter is assigned to it, but when right-clicking it, my only options are to creat a New Simple/Spanned/Stripped/Mirrored Volume.

I tryed many Partition/Data recover softwares, but noone of them find this partition when entering the recover wizzard.. I'm about to try the Create New Simple Volume option, but I'm afraid to loose all the data on it (yep it's almost full and I didn't create any backup...).

So, will creating a new siple volume only give the partition a volume without touching the data? Or should I try something else?

I'm using Windows 10, the disk is FAT32.

Please let me know if you need mor information & thanks in Advance!
Mathieu

I'm using Windows 10, I believe the HDD is FAT 32
 

John_207

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Jan 1, 2016
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I am unsure about this one. First, if you create a simple volume the data will be destroyed. Try assigning it a drive letter, and using a data recovery program on that new drive letter.
 

Toorop68

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Jan 3, 2016
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Hello John_207,

Thanks for the reply.

Unfortunately I can't assign it a letter.

Disk 0
Basic 1863,02 GB
Online

TIL_HDHXU3 (J:)
50 MB FAT32
Healthy (Primary Partition)

1862,38 GB
Unallocated

For the Unallocated Partition, Properties, Events, it says: Device not migrated.

I think the second Partition depends somehow of the first one.

In the case, the HDD was plugged on a board, on which there was the USB 3 Port and the Power Plug
 

John_207

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Jan 1, 2016
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Can you back up your existing healthy partition, delete it and add it to the unallocated space, then run chkdsk /r?



 

Toorop68

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Jan 3, 2016
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I'm not sure how to do this.
The good thing is I absolutely don't need what's on that small partition. Ther are some tools from the Buffalo Hard Drive.

When I right click the partition, I have those options:


Open
Explore
Mark Partition as Active
Change Drive Letter and Paths...
Format...
Delete Volume...


"Extend Volume" and "Shrink Volume" are greyed.
 

John_207

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Jan 1, 2016
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Try this
go on cmd and type "diskpart"

use these commands:
"list volume"
If you can see your unallocated space, go and take note of what the volume is called. If you can't, your HDD died when the power failure killed it, and will require an experienced technician to recover rthe data.

if you can:
typle "select (your volume name here)"
assign

Last ditch effort, if it is totally gone
diskpart
list disk
select (your hdd here)
clean
create partition primary

then download DiskDigger, a file recovery service, click on your new partition and let it run.

then download dis






 

John_207

Reputable
Jan 1, 2016
53
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4,640
Try this
go on cmd and type "diskpart"

use these commands:
"list volume"
If you can see your unallocated space, go and take note of what the volume is called. If you can't, your HDD died when the power failure killed it, and will require an experienced technician to recover rthe data.

if you can:
typle "select (your volume name here)"
assign

Last ditch effort, if it is totally gone
diskpart
list disk
select (your hdd here)
clean
create partition primary

then download DiskDigger, a file recovery service, click on your new partition and let it run.

then download dis