Adobe officially retired the CS activation servers years ago. Even if you have an original disc and a legitimate serial number, the software may fail to activate because it cannot "call home" to verify the license.
Released in October 2003, Adobe Photoshop CS (Creative Suite) — version 8.0 — marked a major turning point for Adobe’s flagship image editor. It was the first version to drop the “version number” from its official name (no longer “Photoshop 8”) and instead adopt the “CS” branding, signaling a new era of integration with other Adobe tools like Illustrator, InDesign, and GoLive. adobe photoshop cs 8.0 serial number
. Because Adobe has retired the activation servers for all software versioned Creative Suite 3 (CS3) and earlier, standard serial numbers and original installation discs for version 8.0 will no longer work for new activations. Activation and Serial Number Status Retired Servers Adobe officially retired the CS activation servers years ago