Where can I find my CS4 serial number to activate my software?

The serial number is the one printed on the box.

We regularly encounter confusion in this forum regarding which box you mean.

The DVD's are in a plastic DVD-sized case (or box) with the serial number on a sticker on the back.

The plastic box containing the DVDs is shipped inside a cardboard box with Adobe Creative Suite artwork on it. That's the box you see on store shelves. For obvious reasons, none of the codes on the cardboard box are the software serial number.

Do you mean the outside cardboard box or the plastic DVD case (inside the cardboard box)?

Apologies if this stuff sounds basic but it has thrown entire discussions in the past.

>The serial number is the one printed on the box

I do not think Adobe ever put a number ON the box where anyone in a store could see and steal the number

As far as I know, the serial number was always INSIDE the box

when you start your installation you'll be prompted for the cs4 serial number.  after entering that you'll be prompted to select a qualifying product.  select cs3 and then enter the cs3 serial number.

enter the correct number at the correct time and installation will proceed.

[moved from Installing, Updating, & Subscribing to Acrobat to Downloading, Installing, Setting Up]