Windows 7 product key



Thread starter #1
I have purchased windows 7 for a system and as I have to use a software which runs on windows xp, I had downgraded my windows 7 to xp with the help of a activation key sent. Now I want to upgrade my windows to windows 7 and unfortunately I lost the COA sticker with the product key of windows 7. How can I retrieve my windows 7 product key.

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