License code doesn't work. What's the correct license code for Windows?

Would you please download the latest version on our site to have a try?
The older version would not accept the code.
Besides, please pay attention to the following tips:
1. It is highly recommended to copy and paste code instead of enter it directly. But pay attention that there is no space at the beginning & end of the code.
2. Please pay attention to the hyphen between numbers and the capital letters if you want to enter the code directly.
3. Please run as administrator in case that your account has no permission to write the registry.
4. And non-system partitions like D: / E: / etc, are recommended to install.