Hello, so I just got my Halo 2 for vista because I want to play them all before Halo 4. When I was done installing I registered the key with the installer. But when I'm going to log in to my live account it says this:
[url]http://i.imgur.com/uzJtv.png[/url]
The game is new, right out of the plastic.
Please help me Obi-Wan Kenobi, you're my only hope!
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Sounds like it's already been used up somehow. You're better off with another product key. Finding a working product key however is going to be really hard since it only has 5 tries.