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usb stick not only recognised in disk manager

hello

I have an 8gb USB stick that i was using to create bootable chromium os images on.  the process has partitioned the disk up a number of times and now when i plug it in it is not recognised.

however when i go into disk manager i can see the usb stick labelled as disk 01 with 6 partitions.  is there any way to get the usb stick back to its original state?

I am running windows 7
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drzackzuss
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drzackzuss
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1 Solution
 
florjanCommented:
You should be able to assign a letter to a whole drive from the disk manager and format it to get it back in original state. You could also use gparted live cd http://gparted.sourceforge.net/livecd.php.
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drzackzussAuthor Commented:

when i try to assign a letter to the drive (only one partition has not got the option greyed out) it gives the error "the system cannot find the specified file" (this is on the partition labelled primary partition).

i have added a pic of disk manager disk manager pic
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florjanCommented:
It does not recognize them as you might have noticed (no filesystem listed) and it doesn't show their size. So I reccomend you download a partition manager (possibly one that goes to cd or usb) such as gparted live cd (http://gparted.sourceforge.net/livecd.php) and just delete the usb disk and recreate fat32 or ntfs on usb.
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drzackzussAuthor Commented:

not used gparted before.  looks as though i need to download an iso burn to disk and then boot computer from that cd.  then run gparted


is that correct?
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florjanCommented:
Yes you burn it on cd and boot computer from cd. It should boot and ask you for keyboard layout. Then you have a partition editor on a deskop that open. If anything is unclear feel free to ask.
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drzackzussAuthor Commented:

thank you

nearly there i think

i booted using the cd and used gparted.  i can format the partitions and then see them when i boot windows back up but not sure how to delete the usb disk as suggested.  do i just highlight each partition then select delete from within gparted?

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florjanCommented:
Yes. And then create a new partition from the space you get.
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drzackzussAuthor Commented:
hello

in the end i had to use a built in utility to analyse the disk and alter the partition setup.  got it all sorted now though.

thank you kindly for all of your help
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