In 2013, Adobe disabled the activation servers for due to technical issues. To help legitimate owners who had already purchased the software but could no longer activate it, Adobe provided a special version of the installer and a universal serial key that did not require server check-ins. where is my pscs2 serial? - Adobe Community
Searching for "skachat fotoshop cs2 c kliuchom" (Download Photoshop CS2 with key) often leads to a common misconception that this software is free. While you may find old links and keys, the official status of Photoshop CS2 makes it difficult to use safely on modern systems.