Format C:
 

David, when I format my drive do I need to register Aspect hd again?

Provided you have not changed your hardware, the existing activation code you have should work. If you are planning to change hardware (motherboard, hard disks etc), you should deactivate the product first as the hardware ID used for registration would change.

Thanks for the answer, and the very quick response!

Safest to deactivative first.