The Activation Key (often a 16-character alphanumeric string) is the primary vector for Software License Management. In the context of Acronis True Image 2017, the key functions on multiple levels:
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The simplest method involves signing into your Acronis Account within the application. If your key is already registered to that account, the software activates automatically. Acronis True Image 2017 Activation Key
where an "Installation Code" is generated. This code must be entered on another internet-connected device at the Acronis website to receive an "Activation Code" to bring back to the original PC. The Risks of "Free" Activation Keys Acronis True Image 2017 Activation Key