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What steps are correct to activate Easypano software in new windows installation in the same computer?

Before you install the new OS on the same computer, please go to the menu "help>transfer license" to transfer the license first. Secondly, install your new OS, install Easypano software, and then use the license key for it to activate it.
  Serial number trasnfer license Panoweaver
  How to do if I lost my key? I don't know which product should I choose. 

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