How to reinstall CS 5.5 Student Edition after clean install macOS Sierra 10.12?

Legacy CS installers are too old for your computer without a terminal workaround.

Assuming you have original installation disks, an optical reader and a valid license for that software version, try the workaround. But you may encounter issues with activation if your system and browser don't support TLS 1.2 connections.  More on that below.

https://helpx.adobe.com/creative-cloud/kb/install-creative-suite-mac-os-sierra.html

TLS 1.2

https://helpx.adobe.com/x-productkb/multi/eol-tls-support.html

Good luck!

Apple did not maintain backward compatibility, so try this to install old programs
https://helpx.adobe.com/creative-cloud/kb/install-creative-suite-mac-os-sierra.html

Hi,

I'm not sure if those old Programs will run on new Computers, but if they do and you have your CDs and serial running .. have fun. BUT be aware, that there will be NO support whatsoever from Adobe and you only can get help if someone knows those old programs here in the Forum and old Tutorials on the internet. Maybe think about getting a new Adobe Subscription if you are planning to work with Adobe Tools. Good Luck. Hope it helps.

no.

there's no benefit to having the purchase/registration email address.  you just need the installation file(s) and serial number.  (and some know-how which you can get here.)

start the installation and when prompted, enter your serial number and click activate.  then the fun begins.  or maybe not. 

let us known what happens after you enter your serial number and click activate.

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post if it helps you get responses.

<moved from using the community>