If you have an old CS6 serial number from a purchased copy, repacking it into a portable format for personal use on Windows 7 is legally defensible. Downloading a pre-cracked portable from a random site is not.

Before downloading, ensure your Windows 7 machine meets these minimums to avoid crashes: Install Photoshop CS6 Full Guide | PDF - Scribd

: These files are frequently bundled with trojans, spyware, or ransomware that can compromise your personal data and take remote control of your computer.

Can CS6 still be installed on a new computer? - Adobe Community

Adobe Photoshop CS6 (Version 13.0) is a legacy version of the software released in 2012 that is compatible with 32-bit Windows 7 systems