While the portable version is powerful, it is not perfect. You must be aware of the following:
Compatible with older hardware configurations and older versions of Windows. It is limited to utilizing a maximum of 4GB of RAM. Adobe InDesign CC 2015 11.3.0 Portable -x86x64
Version 11.3.0 was released in 2016. It lacks a decade of critical security updates, leaving your host system exposed to known vulnerabilities in image processing and scripting engines. While the portable version is powerful, it is not perfect
Some tools or plugins, such as Adobe Digital Publishing Suite components, may not function properly in a portable environment. ⚠️ Important Note on Security Version 11
Unlike the standard Adobe installer (which is over 1 GB and leaves hundreds of registry entries), the portable version of InDesign CC 2015 is typically compressed into a 200–400 MB archive. When extracted, it launches instantly.
A "Portable" edition is not an official Adobe product but rather a version created by third-party developers to offer mobility.