Formatting a USB thumb drive

mrreizor

Member
May 23, 2005
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I have a Sandisk USB thumb drive that has issues. I can only access 4MB of a 256MB drive. I had the drive in a NASlite box to be used as config storage. I need to use it with Windows now.

Under disk management in XP, it shows 239MB is unallocated, and there's no option to format (greyed out). What can I do to reclaim the majority of the drive?
 

mrreizor

Member
May 23, 2005
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yeah.. but it only sees a 4MB partition and formats it perfectly. I think it has to do with the ext2 partition (or whatever kind of partition Linux uses) that NASlite created when the drive was my bootable OS.
 

corkyg

Elite Member | Peripherals
Super Moderator
Mar 4, 2000
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Sounds like you are dealing with a hidden partition, or at least a non-Windows partition. Have you tried looking at it with something like Partition Magic?