It is important to note that for version 2022, Autodesk has largely transitioned away from the traditional "serial number and product key" activation method.
If budget is a concern, there are legitimate ways to use AutoCAD without resorting to illegal serial numbers: autocad 2022 serial number for product key 001n1 work
If you encounter issues during the activation process, here are some common problems and solutions: It is important to note that for version