Hi Steve,
please remark, that Studio12 was designed at the year 2008 , it is 14 years ago !
You cannot expect a program like this to still work without problems after 14 years under new operating systems.
Your problem with activationkeys results at the fact, that the former company "pinnacle " dont exists today,
so the links for activation does not work.
Switch to a actual version of studio, but please remember that relearning will be necessary
Regards, Helmut42