Plug the drive in, and when it shows that the drive is there open the command prompt and type "diskpart". Then type "list disk", and a list of your disks will appear. Find the usb drive and type "select disk #" where # is replaced by the number of the disk. (eg. if it is disk 2 type "select disk 2"). Once it has selected that disk type "list part", then "list vol" and post screenshots of the last two commands and their results here.
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