If you have a legacy USB or DVD box set, the serial number is usually located on the back of the packaging or on a sticker inside the case. Step-by-Step Activation Guide
If you purchased a digital copy, the serial number is typically sent to the email address used during checkout. autodesk autocad 2018 product key and serial number updated
Once you have your credentials, follow these steps to activate: Run the AutoCAD 2018 installer. If you have a legacy USB or DVD
For newer subscription models, you might not even need a serial number; simply signing in with your Autodesk ID may activate the product automatically. autodesk autocad 2018 product key and serial number updated