The unattended installation of drivers for devices that are not automatically found and installed during operating system installation is disclosed. A method determines which drivers are needed for devices on client computing systems that are not automatically found and installed during operating system installation. Entries for the drivers are created within a master driver file. The method copies the master driver file to each client computing system, and drivers that are needed for the devices. For each client computing system, references are created within an unattended installation file to the entries for the drivers within the master driver file. Operating systems are remotely installed on the client computing systems in an unattended manner. The drivers are able to be installed in the unattended manner due to the references created within the unattended installation files to the entries for the drivers within the master driver file.