please have a look there: http://helpx.adobe.com/x-productkb/policy-pricing/activation-deactivation-products.html >>> Deactivation or sign-out problems >>> I cannot access my previous computer >>> I quote: "... Ask Adobe Support to help you deactivate from a machine you cannot access. .... Have your serial number or Adobe ID ready, and then contact us." See Contact Customer Care >>> click through and if "open" please use the chat, I had the best experiences. I quote from Adobe's employee Preran: The chat button is activated as soon as there is an agent available to help.