Before diving into portable versions, it's worth noting that Adobe Photoshop CC 2017 is an older version of the software. Adobe regularly updates Photoshop, and the current version may offer more features, improvements, and security patches. If you're looking for a legitimate way to use Adobe Photoshop, consider subscribing to Adobe Creative Cloud. This provides you with access to the latest versions of Photoshop and other Adobe tools.
The portable version is an unofficial, pre-activated release that runs directly from a folder or a USB drive. Unlike the standard Creative Cloud installation, it does not require administrator privileges or permanent changes to your system's registry, making it ideal for use on restricted work computers or public stations. Key Features of the CC 2017 Release
The Liquify tool, essential for retouching portraits, became much smarter.