4TB HD showing 1.7TB

03staylo · Jul 8, 2017

Hi all,

I recently tried to wipe my HD however whilst attempting to do so my computer crashed, the HB is only showing 1.7TB despite being 4TB.

I have tried various software packages to wipe and reformat the drive however nothing works.

Can anyone advise on any solutions/software they would recomend?

Thanks in advance,

mbilal2 · Jul 8, 2017

03staylo :

Hi there. This is a common problem and can be fixed easily. First, are you sure your Operating System (Windows?) is not installed on that drive? Also what version of Windows are you using?

USAFRet · Jul 8, 2017

03staylo :

1. Screencap of your Disk Management window, please

2. Just delete whatever partitions are on that drive, and start over.

03staylo · Jul 8, 2017

This drive was used as an external driver for media storage so does not have any OS on it.

There are no other partitions on the drive (it appears that way anyway), I had not intentionally created any partitions.

mbilal2 · Jul 8, 2017

03staylo :

Press windows button and type "cmd" Right-click on it and click "Run as Administrator"
Type the following without the quotation marks.
"diskpart"
"list disk"
Now select your disk (in your case I) by typing "select disk X" where X is the letter of the disk.
"list partition"
Here you may see 1 or 2 partitions:

IF YOU SEE 2, do the following.
A. "select partition 0"
B. "delete partition"
C. "select partition 1"
D. "delete partition"

IF YOU SEE 1:

Same as above but just steps A. and B.

After this point the cmd will throw up a format box. Ignore this, you need go back into disk management and create a "New simple volume" Then it should work as a 4Tb Hdd.

IF THIS DOESN'T WORK, go back, and follow these steps after "delete partition" type:

"Clean" (This wipes out all the partitions)

IF CLEAN DOESN'T WORK:

"Recover"
"Clean"

Hope this helped

03staylo · Jul 8, 2017

Thanks for the steps and laying it out so clearly.

The disk showed one partition. I deleted it. I created a new simple volume and the disk still showed 1.7TB

I then followed it again, then followed the alternative instructions. Below is the result:

mbilal2 · Jul 8, 2017

Remove any useless storage devices attached. Go to disk manager and delete multiple partitions. You should have just one single partition. This method will work for USBs, SD Cards, etc too. Let me make it simpler: (Don't put in any quotes)

Press (WinKey + R)
Type "cmd"
Type "diskpart" in cmd
Type "list disk"

Here you will see all disks connected. Find the disk that is missing storage space. NOTE: Choose the correct disk or you will loose all your data!!

Now type "select disk x" where x is the disk number that is missing storage space.
Now type "select partition 1"
Type " delete partition"
Type "partition"
Type "create partition primary"

You should get a message saying "No usable free extent could be found. It may bla bla...."
Type "clean"
Type "create partition primary"

Now go to This PC and right click on the Drive. Format using NTFS and you should see the whole capacity. (You can do the same in disk management)

TADA!! You are all done

Up vote and choose as the best solution if this helped!
Cheers

USAFRet · Jul 8, 2017

03staylo :

hmmm....are you absolutely sure this is a 4TB drive?
Make/model/part number, please...

03staylo · Jul 8, 2017

I've just tried the above however when getting to the "partition" command it pulls through the following message:

If I skip that step I get the following:

mbilal2 · Jul 8, 2017

03staylo :

Yes that is supposed to happen. Keep going, you are on the right track.

03staylo · Jul 8, 2017

I followed it though, saw the "No usable free extent could be found. It may bla bla...." and reformatted the drive however it is still showing 1.7TB

mbilal2 · Jul 8, 2017

03staylo :

Did you do
Type "clean"
Type "create partition primary"
after the "No usable free extent could be found. It may bla bla...." ?
If yes, I am afraid I can't be of further help. Are you sure you are selecting the right disk? You have about 6 and it might be confusing..

03staylo · Jul 8, 2017

Thank-you for your help however I fear it is knackered

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4TB HD showing 1.7TB

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USAFRet

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03staylo

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mbilal2

Reputable

03staylo

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mbilal2

Reputable

USAFRet

Titan

03staylo

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mbilal2

Reputable

03staylo

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mbilal2

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03staylo

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