Activation is done directly through the manufacturer's site:
https://myaccount.pandasecurity.com/
1) Please log in with your Panda account; if you do not have an account, please create one.
2) On the right side, click on "Add Product"
3) Enter the activation code and confirm it. Immediately after, the purchased product will be displayed in the center, and you can start the installation.
The instructions are available in our Help Center:
Note that the activation code can only be activated once - as the license can only be linked to one account. The remaining activations are managed through your account.