CS4 install trouble.

[CloverCreativeNH]

i have an older DVD of the Master Creative Suite that I used prior to CC. I tried installing it on my computer at home, and it said my serial number was invalid. I triple checked it with the back of the DVD and it is accurate. What can I do to activate this?

[kglad · Accepted solution]

that message indicates your number is incorrect or the installation file is incorrect.

the first problem you should be able to rule-out by carefully entering the 24-digit number (6 groups of 4 numbers) that you saved.  can you do that?  ie, are you certain you're using the correct number?

if the number is correct, you have a mismatch between your serial number and your installation file.  eg, the serial number/installation files must match by region/language (eg, usa vs eastern europe), license-type (eg, single-user, enterprise, education) and, or course, program (eg, a serial number of cs6 master suite will not work with a cs6 photoshop installation file - even though ps is part of master suite).

here's some more info:  https://helpx.adobe.com/creative-suite/kb/error-serial-number-valid-product.html