If you have uninstalled the registered Bandicam, you can re-use/transfer the license to another computer.https://www.bandicam.com/faqs/bandicam_ ... on_policy/
Please follow the process below.
1. Uninstall the registered Bandicam from an old PC.
2. Download and install the latest version of Bandicam on the new PC.https://www.bandicam.com/downloads/
3. Register the license on the new PC.