How many legal ways are there to get a full Windows desktop license? What does the Windows Desktop volume license cover? Are OEM license transferable? If you know the answers to these questions and have a valid US shipping address then Microsoft wants to give you a free gift. Simply go to Microsoft's website fill out the information and answer a few questions (HINT: 2, true, true true) and your off to the races. The once catch is you need a passport account, but those are free too :)
The drive contains all sorts of valuable FAQs and licensing information to help keep you legit.
To get your free flash drive go here and click on the 'Get Yours!' link on the right side of the screen.