To transfer your license to another computer, please do the following:

1. Uninstall the software from the first computer and then reboot that computer
2. Install the program on the second computer and click the Unlock button
3. Enter in your license key
4. The software will then be activated on the second computer and deactivated on the first computer

PLEASE NOTE: Only one license key per computer is allowed at any given time.

Please review this post carefully for a Security Update:
http://www.hide-my-ip.com/forum/index.php?showtopic=480