Methods and systems for managing computer system configuration data are provided. The method includes staging the configuration data in a staging memory accessible to a first application, selecting a path for a transfer of the configuration data from the staging memory to a target memory, emulating a hardware data loader using a second software application adapted to control a transfer of the configuration data from the staging memory to the target memory, and transferring the configuration data from the staging memory to the target memory using the emulator. The method further effectively expands a memory capacity of a Flight Management Computer by providing swappable memory capacity such that a re-certification to Federal Aviation Administration standards of the Flight Management Computer is not triggered.