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Windows 7: How do I delete a primary partition

12 Oct 2013   #1
RockofNJ

Windows 7 Ultimate x64
 
 
How do I delete a primary partition

I have a USB thumb drive that has 32GB imprinted on it but windows only sees 1 primary partition of 62MB. How can I delete this primary partition and get this thing back to a 32GB drive? Could there be hidden partitions?


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12 Oct 2013   #2
Dude

Windows 10 Pro X64
 
 

RockofNJ, welcome to the forums. Right click computer and select manage, the re format it from there.
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12 Oct 2013   #3
RockofNJ

Windows 7 Ultimate x64
 
 

Hi Dude, I don't want to format it I want to make it 32GB like it says on the drive.
Attached is a screen shot


Attached Images
How do I delete a primary partition-disk-management.png 
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12 Oct 2013   #4
Dude

Windows 10 Pro X64
 
 

I seems to be formatted wrong for a memory stick, you have it as NTFS, here is my 8gb stick...fat 32 format
How do I delete a primary partition-memory-stick.png


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12 Oct 2013   #5
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by RockofNJ View Post
Hi Dude, I don't want to format it I want to make it 32GB like it says on the drive.
Attached is a screen shot
Just extend that volume
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12 Oct 2013   #6
Dude

Windows 10 Pro X64
 
 

I suggested re formatting because to extend it it should show unallocated space which his doesn't.
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12 Oct 2013   #7
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Dude View Post
I suggested re formatting because to extend it it should show unallocated space which his doesn't.
I didn't notice that... thanx.
But reformatting or deleting the partition won't help either (I think). Total physical disk size is 62MB in screenshot.

Maybe reinitialize the usb disk will help?
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12 Oct 2013   #8
Dude

Windows 10 Pro X64
 
 

Possibly. Strange it only show 62mb. Is it as he asked hidden, or possible encrypted?
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12 Oct 2013   #9
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

In Elevated Command Prompt

Code:
diskpart
list disk
--disk 1 is the disk you want to fix? Be sure you use the correct number !! --
select disk 1
clean
create partition primary
exit
Post disk management screenshot again
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12 Oct 2013   #10
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Dude View Post
Possibly. Strange it only show 62mb. Is it as he asked hidden, or possible encrypted?
Not hidden. You can put an encrypted file system in a container that is actually a fiel in a partition. Or encrypt a whole partition. But anyway... the partition size shows correct in disk manager. It's just end-sector minus startsector.

Don't know where the really last sector on disk is stored... so I don't know it computes the disksize.
Even an totally cleaned disk has a disksize!! Maybe stored in firmware(?)

I know we're not talking about sectors here becuase it's usb flash stick, but actually it's the same.
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