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Windows 7: 3TB interrnal drive with 3 partitions is unallocated

08 Feb 2015   #1

Windows 7 Ultimate 32bit
3TB interrnal drive with 3 partitions is unallocated

When I booted Win7 ran a CHKDSK on one of the partitions on the 3TB drive. When I got back into Windows drives G,J, and K had disappeared. DIsak Manager shows the drive as 27984.39GB Unallocated.

I found this forum and did some reading. I downloaded MiniTool Partition Wizard and it shows the following:

3TB interrnal drive with 3 partitions is unallocated-shot001.jpg

Please help


My System SpecsSystem Spec
08 Feb 2015   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

A member named "Jumanji" is the resident expert on partition recovery.

He may see your post and reply. If not, you might make a new post in the backup and restore section.

Partition Wizard is a good tool. I'd at least start by letting it do a full scan of the problem drive, but don't proceed beyond the full scan without assistance.

If you are lucky, you will be able to recover the partitions, which will still have the data files intact.

If you are not lucky, the partitions may be lost and you would then be forced to attempt to recover the files directly with some other tool.
My System SpecsSystem Spec
10 Feb 2015   #3

Windows 7 Home Premium 32 bit

Hi icr,

I know that you checked just four hours ago.:)

From the PW screenshot you posted I see that you seem to have lost your first partition. Partitiion Recovery Wizard did not find it. But it did find the second and third partition.

1. It is inconceivable that your HDD got corrupted just because you ran disk check. You ran checkdisk because you had a problem. What was it?

2. What prompted you or made you think that running checkdisk will resolve that problem?

3. Did checkdisk complete?

Though this is not going to resolve the issue, it will help us know the status of the disk at that time and whether running checkdisk on that problem had made it worse to the current situation.

I have my own doubts whether Partition Recovery Wizard is going to help in this case.

We haven't had any GPT disks on which we had run Partition Recovery Wizard. All the same we shall run it again but not before I examine some crucial sectors in the drive and backup those so that we can revert back should the condition of the disk become worse.

But that after you answer the queries above.

I would also like you to post a screenshot of Windows Disk Management. ( Please remove any USB drives from your PC. )
My System SpecsSystem Spec

10 Feb 2015   #4

Windows 7 Professional 64-bit

jumanji, could a power supply be underpowering this HD? In my earlier days as phone tech, we ran across computers which, after having toys added in [and onto the power supply], PS would not sufficiently power the HD. I ask this 'cause OP mentioned having to suddenly run chkdsk right out of the chute.
My System SpecsSystem Spec
10 Feb 2015   #5

Windows 7 Home Premium 32 bit

I don't think so but given that its going to be easy to plug out other secondary drives leaving only the system drive and the problem drive, do you think the OP should do it? You may instruct the OP so. It is a custom-built PC and so the OP should be able to do it easily.

I am retiring now.
My System SpecsSystem Spec
10 Feb 2015   #6

Windows 7 Professional 64-bit

jumanji, if a partition recovery is called for, what top 3 program[s], free and/fee, would you recommend?
My System SpecsSystem Spec
10 Feb 2015   #7

Windows 7 Home Premium 32 bit

There is no one-size fits all in data Recovery.

But the highly rated from our experience here are TestDisk, PhotoRec (free) and Getdataback for NTFS (paid) not counting partition recovery as data recovery software.
My System SpecsSystem Spec
11 Feb 2015   #8

Windows 7 Professional 64-bit

jumanji, Getdataback for NTFS, Like SpyHunter, you have to buy it before you can really solve anything. :) Have you road-tested it? How were the results for you? Better than Piriform's Recova? And, the OP gets to decide which folder/file recovery software to get for free or fee.
My System SpecsSystem Spec

 3TB interrnal drive with 3 partitions is unallocated

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