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Can you reformat a flash drive after writing an iso image to it?

Tags:
  • Flash Media
  • ISO
  • Flash Drive
  • Storage
Last response: in Storage
September 20, 2011 8:52:04 PM

Can you reformat a flash drive after writing an iso image to it?

I recently wrote an image to a 16gig drive, but now windows with only let me reformat it for 1gig of space.

Am I missing something? Shouldn't I be able to reformat it despite what is written on the drive?

More about : reformat flash drive writing iso image

September 20, 2011 9:02:34 PM

By writing an ISO you probably created a partition of the size of the ISO

Go to Disk Management and delete the partition, then create a new partition using all the space
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September 20, 2011 9:02:46 PM

You formatting it in NTFS?

Try doing this:

If you running windows 7/vista

Start>RUN>CMD>enter

type
>diskpart
>listdisk
>Select Disk 1 (1 being the flash drive. Could be 2, could be 3.. i dont know. check the sizes if you are unsure, but be sure to select the right one)

>clean
>create partition primary
>select partition 1
>format fs=ntfs quick
>assign
>exit
>exit

This should format the flash drive correctly. Please remember to use the list disk to select the correct drive number. Drive 0 usually is C drive. find the drive that is the correct size of your flash drive, that should be it.
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1
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September 7, 2015 8:56:15 PM

rozz said:
You formatting it in NTFS?

Try doing this:

If you running windows 7/vista

Start>RUN>CMD>enter

type
>diskpart
>listdisk
>Select Disk 1 (1 being the flash drive. Could be 2, could be 3.. i dont know. check the sizes if you are unsure, but be sure to select the right one)

>clean
>create partition primary
>select partition 1
>format fs=ntfs quick
>assign
>exit
>exit

This should format the flash drive correctly. Please remember to use the list disk to select the correct drive number. Drive 0 usually is C drive. find the drive that is the correct size of your flash drive, that should be it.


thaks rozz, i just fixed a 32gig usb drive following your steps. cant thank you enough.
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