Switch: / auto Parameters : Upgrade; DataOnly; Clean Action : Automate install with migration choice for the installation. ...

Switch: / auto  
                                                         
Parameters : Upgrade; DataOnly; Clean 
                                                         
Action : Automate install with migration choice for the installation. The media setup UI and progress screens are shown by default, but are automated.This switch also assumes the following default configurations : EULA acceptance, Dynamic Update is enabled, telemetry collection and upload opt - in, OOBE will be skipped, PBR will be updated or created. 
                                                         
Example : setup.exe / auto upgrade