Trying to figure out which one to buy

The OEM is a Full install that will be tied to whatever computer you put it on and activate it on.

The Upgrade is a Retail upgrade, and you'll be able to "Upgrade" as many computers as you want, as long as it's only running on one computer at a time.

For future use, I would get the Retail Upgrade, unless you know you'll never install it on any other machine.
 
ya I think I will stick with the pro. I don't really need bit-locker or the language packs. Unless is there anything else that Ultimate comes with that I am not aware of?
 
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