Upon triggering "Apply" for such operations, AOMEI injects a proprietary boot loader into the Windows Boot Manager. Upon restart, the system boots into the AOMEI Pre-Execution Environment—a lightweight, Linux-like or WinPE-based environment—where the partition operations occur outside the control of the main Windows kernel. This ensures that system files are unlocked and can be safely manipulated. Version 9.14.0 has improved driver compatibility in this environment, supporting newer NVMe controllers and USB 3.0/3.1 standards that previous versions struggled to detect during boot.
The core functionality of the software lies in its ability to resize partitions without data loss. The algorithm works by: aomei partition assistant 9140 all edition x free