Because of the 3 year support and update sunsetting of all quickbooks desktop products you have run into a brick wall that prohibits self- reactivation and as such you will have to call support during normal business hours to get this edition newly registered on a new computer.
Follow the "Contact Us" links and enter specific reasons for the need to get the correct phone number to call.
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For QuickBooks 2015 and older versions
In line with Intuit's discontinuation plan for older products, discontinued products cannot be registered for the first time. You can re-register discontinued products if they have been registered before and are being reinstalled.
You can contact us to get the validation code, but note that assisted support for discontinued products is no longer available."
