- Wilis_kid
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- Exalted Heroic Member
Posted by: EpicWaffles
I just bought Halo 2 Vista NEW shrink wrapped and everything for my computer. When I launch the game and try to sign in it says CANNOT SIGN IN THE PRODUCT KEY YOU ENTERED IS NOT VALID. What do I do? :P
Try again or buy a new copy, Microsoft won't help you anymore.