I have After Effects as a part of the Creative Suite 4 Production Premium (mac). If I uninstall and use the CS4 Clean Script, will it delete all of my project files? Also, will I have to deactivate my product before uninstalling?
will it delete all of my project files?
Nope. In fact the CS4 Script does not wipe anything (but the CS3 one does), it just clears out the installer database so any successive installs act as if nothing was ever there. If in doubt, it never hurts to move anything you could miss later to a backup... And yes, of course deactivate before doing anything that may affect the whole suite. the licensing system is fragile as it is, no need to challenge fate...