One USB Flash Drive Shows Up In POST As Two Pieces of Hardware

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bmtphoenix

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May 10, 2010
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I have an old Patriot XT 4GB flash drive that, somehow, has become two pieces of hardware according to Windows, Linux, and any BIOS. About 1GB is inaccessible, while the other 3GB are usable. The 1GB portion shows up in Windows as an unpartitioned and unformatted device, and although I can assign a partition and format it, I cannot write to the 1GB part.

I don't care one way or the other about the data on the drive. I primarily use it for booting to GParted. It's just sort of confusing having to pick PATRIOT USB DEVICE or PATRIOT USB DEVICE from the boot menu...lol. Also, how in the world does this happen, and how do you fix it?
 
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Hardwareaddict

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Jan 21, 2014
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Have you tried the DISKPART function in CMD?
(warning, you'll lose all your data.)
Start-> Cmd
type in diskpart
list disk
select disk n (where n represents the disk number)
clean
create partition primary
exit
After, you'll have to format the drive in My computer.
Does it work after this?

 
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bmtphoenix

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May 10, 2010
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DISKPART lists it as two disks as well. I tried cleaning both because why not, and they are still showing as two separate devices when I use DISKLIST. I can also eject them separately from the Computer menu in Windows.
 
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Hardwareaddict

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Jan 21, 2014
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Hmmm... Can you try those steps again, but after "Create partition primary", type in "select partition 1" , then type in "active" to mark the partiton active. After, type "format fs=ntfs" Although this is a full format and will take some time, this could work...
 
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