Question about SANDISK Ultra Dual Drive Luxe

Bought this stick too and it works without any problem. at least tells me 122GB available. ;)
I have not tested it though. I've never done that before, and I've already bought a few sticks. from 128MB to 128GB now. At that time 128MB were as expensive as 128GB today. ;)

Have you ever checked if it has partitions on it? Which OS do you use?

I recommend you proceed as described by Stardustone. For your information: My stick works perfectly and has the specified 128 GB available.