How to change an existing installation on AutoCAD or other design products from Autodesk from Network aka LMtools based license to named user licensing. This video shows how to change the license type without having to re-install the product.  You can find the links to the downloads mentioned on the video below:

Licensing Support Tool
https://www.autodesk.com/support/download-install/individuals/product-key/look-up-product-keys

Look up product keys
https://www.autodesk.com/support/download-install/individuals/product-key/look-up-product-keys

Command:
AdskLicensingSupportTool.exe -r 001m1:User