I'm having the same problem as aramisster . Clicking on the Enter Product Key or Start 30 Day Trial buttons, etc. does nothing. The menu doesn't work. I posted about it here last week but have not received any replies: https://forums.stardock.com/46
On the system that I upgraded from Windows 8.1 to Windows 10, I successfully installed Start 10, but it will not let me get past the registration window. I can't begin the trial period, enter a product key, or buy a key. The window with those options opens but is completely unresponsive. I've tried restarting my computer, uninstalling Start10 and reinstalling it, etc, but I can never get past the registration window. The same thing happens even when I try to reinstall my licensed copy