2. Adobe Creative Suite products are End of Life. They are no longer legally sold by any vendor, retailer or country.
3. CS5 and CS6 are on life support. But they can still be activated providing you have the following: 1. original media (disks or downloads) you received at purchase and a way to read them, 2. a legitimate serial number for that version, language and platform (Win/Mac), 3. an older operating system that can support legacy 32-bit apps. -------------------------- NOTE 1 : Creative Suite installers won't work on macOS Sierra, High Sierra or Mojave without terminal workarounds. See the help article below. https://helpx.adobe.com/creative-cloud/kb/install-creative-suite-mac-os-sierra.html
NOTE 2: Creative Suite cannot run on Catalina or Big Sur.
Nancy O'Shea, Adobe Product User & Community Professional Alt-Web Design & Publishing ~ Web : Print : Graphics : Media