You can download ActivInspire by going to http://www.prometheanplanet.com/activinspire.
If you have your Promethean ActivBoard serial number please follow the instructions on article 10937 on http://www.prometheankb.com on how to generate an ActivInspire serial number.
If you have an ActivInspire serial number already, once the software is installed and first ran you will be able to enter it as your “activation key”.
If you have any questions please let me know.
Promethean Technical Support