The version includes everything in the standard edition plus tools for 3D and technical analysis:

CS5 is not officially supported on Windows 10/11 or macOS versions newer than Mojave 10.14.

You can typically activate it on up to two machines simultaneously using your 24-digit serial key.

Ensure you have the .exe and .7z installer files. Run the .exe to extract the full installer, then follow the prompts.

For older hardware, Intel recommends installing the Photoshop CS5 12.0.1 patch and the Camera Raw 6.1 updater for better stability. 2. Exclusive "Extended" Features