If the server does not accept your registration number, please check whether you have entered it correctly upon registration.
If you have typed it correctly, then check if you are registering the same version as you are using. Currently the four different major versions of Handy Backup are supported:
It is impossible to register your version with a registration number that belongs to different versions of Handy Backup.
You will see the following window.
If you have bought the program on the web-site handybackup.com, please go to the page dedicated to this problem and follow the provided instructions.
If you have received a message "Registration limit exceed", please send E-mail to our support team support@handybackup.net about this problem, and we will help you solve this situation.
See also: FAQ | Registration, Re-registration, Registration Number Loss:
⇒ Program registration without Internet access
⇒ Can I use a single license on more than one computer?
⇒ How can I move my copy of the program from one computer to another?