How do I deactivate Digital Editions from an iMac that I do not have access to anymore?
When you run out of activations (6) you will get a message when you try to activate another device.
At that point, contact Adobe and they will reset all your activations, and you must reactivate the devices you still want.
Adobe Live Chat: http://www.adobe.com/support/chat/ivrchat.html
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