: Information on how to retrieve or use codes for this older version of the software. Troubleshooting

On a different computer (with internet access), go to the official McNeel Offline Activation page (typically https://www.rhino3d.com/activation ). Enter your license key and the request code.

If you registered your license upon purchase, log into the McNeel License Management Portal . You can view all your licenses, download installers, and—most importantly— for new computers (provided you deactivate the old one first).