Older perpetual licenses or certain standalone versions require a serial number. AutoCAD 2018 Backwards Compatibility - Forums, Autodesk
: If you don't have an internet connection, you can select "Request an activation code using an offline method" to generate a request code. 2. Sign-In Activation (Single-User) autocad 2018 activator
: The software will automatically verify your subscription and activate. 2. Serial Number & Product Key autocad 2018 activator
Activating AutoCAD 2018 using an activator is a relatively straightforward process. Here is a step-by-step guide: autocad 2018 activator