Hello Adriana,
Please note that we do not allow to register using your personal email address (Gmail, Outlook, Yahoo, etc.). Kindly use your professional (university/company) email address.
Also, if you have already registered before and downloaded on the PC and used software, you won’t be able to register again and use the software on the same PC again.
If you really need to software for your project, and if you are a student, I urge you to apply for the student license which we offer at subsidized rates.
If you work for a company, let us know and we can provide you the license quotations.
Kindly share your requirements by writing to us at support@optiwave.com
Looking forward to hear from you.
Best,
Saurabh Bedi.