Because v8.4 is an older version, it is no longer sold on the official AOMEI website (they sell v10+). To get v8.4 legitimately:
If Windows fails to boot, you cannot run the software. v8.4 includes a tool to create a bootable USB drive or CD/DVD. You can boot your computer from this media to fix disk errors, resize partitions, or recover data even when the OS is dead. aomei partition assistant professional edition v84
Manage dynamic volumes with flexibility, including resizing and converting them to basic disks Recovery Tools: Features a Partition Recovery Wizard to retrieve lost or deleted partitions and data www.bestbackupreviews.com Bootable Media: Because v8