Adobe gives away Photoshop CS2 as full free version.
This is the GERMAN version!
But I am sure you will also find an English free full version when you google.
I have installed it on my Windows 10 64-bit system and it works fine.
Download Vollversion Photoshop CS2:After Adobe has stopped the support, the formerly over 1,000 Euro expensive image processing software "Adobe Photoshop CS2" from the year 2005 is now offered free of charge for download.
https://www.chip.de/downloads/Photoshop ... 62951.html
Adobe Photoshop CS2 professionell - Gratis eBook (HTML)
https://www.chip.de/downloads/Adobe-Pho ... 70811.html