Hello, I refreshed my windows 8 and lost my office professional 2007. It worked before but I was having a problem with adobe and refreshed my computer and it took it off with several other programs, this is the only product that said I have an incorrect product key...no I don't it's in front of me and it was working great this morning with outlook.
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Call Microsoft Support. Explain the situation. If you can satisfy them that you actually bought it (a faxed receipt may be necessary), they may be able to help you.