Question about Microsoft Halo: Combat Evolved for Windows

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It keeps saying my product key is invalid when i have the legit key off the box!

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I must express my thanks and appreciation to the online product key vendor Office2016Keys.com . The guys of the technical department answer my questions and provide the instructions soooooooo professional and patient. The genuine product key I bought is sooooooooocheap and the after-sell service is soooooooo high Professional. The best product key vendor I know so far.

Posted on Apr 18, 2016

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The problem may be that the key has already been used since there are various keygens and cracks that may posses the same product key as yours, its unusual but happens, or it may just be that you bought an illegitimate product..you may have to get another product key.

Posted on Mar 17, 2011

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Make sure that you are reading the cd key correctly. if that doesn't work, you can either call microsoft, or you can follow this link and try one of these keys. http://www.youtube.com/watch?v=myPnX8WrbwA

Posted on Mar 17, 2011

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