I have a partition on my USB stick which Windows says is Unallocated.

When I right click on this partition, I do not get the option of creating a new partition as all options are greyed out.


What can I do to get this partition back and merge it with the existing partition?

I have access to both Windows 7 and a Mac if that helps.

  • Although I have put the answer I used below, I feel that is it not the most helpful answer that can be found as most people do not have a Mac as well as a PC.
    – rhughes
    Mar 25, 2014 at 7:53
  • I would use the GParted liveCD to repartition the USB drive.
    – Lawrence
    Mar 25, 2014 at 8:02

2 Answers 2


To me, I just plugged the USB stick on a Debian machine and used the Disk utility to delete all partitions and create a single one again.


I reclaimed the entire USB stick by plugging it into the Mac and then used the Disk Manager to erase all of the data. This erased both partitions and created a new, single one.

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