SMS uses the CCM Boot Loader DC account (SMS#_DomainControllerName) to install Client Configuration Manager (CCM) Boot Loader on domain controllers. SMS automatically deletes this account after CCM Boot Loader is installed, although it can persist somewhat longer after CCM Boot Loader is installed on backup domain controllers.
While it exists, the CCM Boot Loader DC account is a member of the local Administrators group on each client computer and has the Log on as a service right.
Related Topics
SMS Accounts Configuration Overview