Hello and thank you for this question.
In order to license the software onto new computer, please remove it first from the current computer while connected to the Internet and then download and install the software from the original purchase confirmation email and reuse the same key again.
In case the download link has expired, please contact customer service representative at the mentioned portal with request to reopen the links.
Kind regards
I reinstalled the system on the MAC. I need to download a product from another. Please send a link. The installation key is.