AOMEI Partition Assistant Technician 10.3.0 is an enterprise-grade disk management software designed for IT professionals and technicians to provide billable technical services to multiple clients. The "Portable" version allows the software to run from a USB drive without installation on the host machine. Core Capabilities
Facilitates migrating the operating system to SSD/HDD or cloning entire disks for hardware upgrades.
If you need a portable partition manager legally, consider of free tools like GParted Live (bootable USB) or AOMEI Partition Assistant Free (installable, not truly portable).