A system for securely and reliably transferring startup script files over a network may include a unified extensible firmware interface (UEFI) network stack on a client server wherein the client server requests startup script over the network upon startup of the client server using a secure transfer network protocol and receives over the network the startup script. A computing device may comprise a unified extensible firmware interface (UEFI) shell to request a download of startup script, over a network, upon startup of the client server wherein the startup script is staged in a provisioned storage device within the client server to be mounted as local file systems in the client server. The UEFI shell.