How to access both partitions on a bootable USB flash drive in Windows [duplicate]
Windows does not allow you to see anything but the first partition on USB flash drives. This is a well known issue and Microsoft doesn't seem to be considering it a major issue. There is a firmware hack for some brands that will tell Windows the drive is not flash media, however doing this may cause performance/reliability problems.
It's a bummer.
I have had good success in accessing USB Partitions in Windows using latest version of Bootice
The important think you need to keep in mind is that, you set the first partition as accessible before booting it again. For example - If you had set the second partition as accessible, then before removing the USB Drive, you need to set the first partition as accessible.
If you dont want to use Bootice, then you can use a Filter Driver such as Diskmod to make your USB Flash Drive appear as USB HDD so that Windows displays all the partitions.
More details here http://agnipulse.com/2012/03/filter-drivers-removable-media-fixed-disk-windows/
Is there a way to partition USB flash drives, so that both/all partitions appear in Windows?