transferring SD to different computer
 

I am trying to do this and cannot register my copy. I still have it running on the other computer. Is there a way to deactivate it. I have 3 copies of SD on 3 different machines and I'm just trying to move one.

There's no activation. You just have to make sure the date/time is correct and you're copying name and number from the receipt (see the instructions in the receipt itself).