Patent attributes
Systems and methods are included for causing a computing device to assemble and boot from a managed operating system. When the computing device is powered on, it can execute firmware that specifies a server to contact. The server can identify an operating system (OS) to boot, and the location of a pre-enrollment installer for assembling the OS image. The pre-enrollment installer can download base OS images in one or more pieces from multiple locations determined based on ownership information of the computing device. The multiple OS images can relate to enterprise management and company-specific applications and drivers. Once the pre-enrollment installer has combined the base OS images, the computing device reboots using the combined OS image.