If you strictly need a free, portable partition manager, there are open-source and freeware alternatives that are safer than using a "cracked" EaseUS version:

No registry entries or leftover files on the host computer.

Using cracked software violates EaseUS’s EULA (End User License Agreement). While unlikely for individual use, businesses face fines for unlicensed software. More importantly, seeding torrents could expose your IP address.