I tried 12,14 which where run on Windows 7.  Each disc run for a while then stopped, nothing happened.  I have now have windows 10, laptop. I had to purchase, via email, studio 24 ultimate for £80.  When I tried to installed it code, cleverbridge? ref: no.  on the screen it had 'logo', training, etc.   I didn't need training so I selected the 'studio' icon - nothing happened but on screen a small, black box with a notice on it: "INITIALING EFFECT STSSYSTEM - PLEASE WAIT". It is still there, in a loop. I know from passed experience, (long ago), if I uninstall it and reinstall it the codes are not recognised. I'm 72 and NOT a computer expert.