Deactivate Product key windows 7 34-bit

hello, i install 34 bit by mistake and i entered the product key, then i remove it and install 64 bit i try to activate it but microsoft blocked the product key now what can i do ? i have ultimate original copy.
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More about deactivate product windows
  1. If you have the original license then follow the directions that the activation wizard gives you and call them.
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