Hello,
This is not a free version but a limited trial for recovering
2GB of data. If you have less to recover, that's good; otherwise, it's useless.
Try
Recuva A whole list awaits you here => https://www.commentcamarche.net/download/recuperation-de-donnees-205/windows/
And to finish, indeed you won't get any help on CCM to obtain an activation key for any paid software used. --
Best regards - Dori@n The courage of the drop of water is that it dares to fall into the desert.