Downloading unofficial versions of legacy software like Photoshop CS5 (originally released in 2010) poses several dangers to your computer and personal security: Is there a portable version of Photoshop? - Adobe Community
If you need Photoshop for a 32-bit system or a low-resource environment, consider these legitimate options: Install previous versions of Creative Cloud apps adobe photoshop cs5 portable 32bit free download for new
A "portable" application is typically a modified version designed to run without a standard installation, often from a USB drive. However, users should be aware of several risks: Adobe Photoshop CS5 Portable Download (v12.0) often from a USB drive. However