Adobe Illustrator CS5 v15.0.2 "Lite Portable" is an unofficial, stripped-down version of the professional vector graphics software originally released in 2010. While it is marketed as a "free" and "lite" alternative for quick edits, users should be aware that Adobe does not officially offer or support a portable version of this software. Overview and Key Features
This means you lose non-essential functionality but retain 95% of design capability. Adobe Illustrator CS5 V15.0.2 Lite Portable Setup Free
Tools like Inkscape are free, open-source, and have official portable versions that are safe to use. If you'd like, I can help you with: Finding free, legal alternatives to Illustrator Adobe Illustrator CS5 v15
If you're interested in running Adobe Illustrator CS5, here are the minimum system requirements: "Downloaded from a torrent, got a ransomware infection
On that USB stick lived a legend:
Navigate to the folder and double-click Illustrator.exe or PhotoshopPortable.exe (depending on the repacker).