Hi,
1. If you uninstall the registered Bandicam, you can re-use/transfer the license to another computer.
For more information, visit
https://www.bandicam.com/faqs/bandicam_ ... on_policy/
2. If you have lost the Bandicam serial number, go to the Bandicam purchasing webpage (
https://www.bandicam.com/buy/) and then input your email address. The same serial number will be sent through e-mail.
For more information, visit
https://www.bandicam.com/faqs/how_to_ge ... ial_again/
If you still have the registration issue, please contact
bandicam@bandicam.com with your license information and the error message.
Thank you.