I have a Mac Pro 3,1 with Photoshop CC and also the full CS5 Master Collection and Acrobat 9 installed. I wish to take the SSD and place it into another Mac Pro, this one a 4,1 version. Do I need to deactivate all Adobe products on the old Mac Pro prior to moving the SSD, then reactivate the products once installed on the new Mac Pro? Will I need the serial number for the CS5 Master Collection and Acrobat (they are registered under my Adobe ID)?
It would be best to deactivate. That way you can be more certain that you have the freed up installations to work with. You will need the serial numbers, so get them before you do anything.