How to request an Activation Code | AutoCAD | Autodesk ...
knowledge.autodesk.com › support › autocadHere are some common scenarios that may require manual activation: The system is not connected to the Internet; Operating system was upgraded or reinstalled; Change of the request code; Modifications to computer hardware; Forced reactivation during troubleshooting; Note: Request and Activation codes are computer specific. For every activation of your software on a new machine, the Request and Activation code will be unique and can only be used once.