I just installed Windows 7 and had the same problem. Fortunately I followed the link on the license expired message and called the number on the website contact form. The guy was real friendly and got me reactivated in no time. I just needed to provide my email address and the last 4 digits of my system ID (shown in keyclone). Also, he indicated a new version was being worked on... adding some cool sounding stuff and fixing that cursed "close bug". Looking forward to that. :thumbup: