/PendingDevicePolicy Defines which clients the server will respond to. /Policy:{AdminApproval | Disabled} Specifies how and ...

[/PendingDevicePolicy]
        Defines which clients the server will respond to.

  [/Policy:{AdminApproval | Disabled}]
        Specifies how and when to respond to client computers.
        AdminApproval means unknown computers will be put in a pending
        queue (in the Pending Devices node of the MMC snap-in). The
        install will not proceed unless the admin approves the boot
        request.  Disabled means that administrator approval is not
        required.

  [/PollInterval:{Time in seconds}]
        Interval (in seconds) at which the network boot program should
        poll the WDS server.

  [/MaxRetry:]
        The number of times the network boot program should poll the
        WDS server. This value, along with the PollInterval, dictate
        how long the network boot program will wait for a
        administrator to approve/reject the computer before timing
        out. For example, /MaxRetry:10 and /PollInterval:60 means the
        client should poll the server 10 times, waiting 60 seconds
        between each try.  Therefore, the client would timeout after
        10 minutes (10 x 60 = 600 seconds, or 10 minutes).

  [/Message:]
        The message displayed to users that are in a pending device queue.

  [/RetentionPeriod]
        The number of days a device can remain in the pending device
        database before being purged.

    [/Approved:]
        Retention period for approved devices.

    [/Others:]
        Retention period for unapproved devices (rejected or pending).

[/PendingDeviceSettings]
        Specifies the default settings for each computer.

  /Architecture:{x86 | ia64 | x64 | arm | x86uefi | x64uefi}
        Specifies the architecture for these
        settings.

  [/BootProgram:]
        The network boot program to send to the approved computer. If
        not specified, the default for the architecture will be used.

  [/WdsClientUnattend:]
        The path to the unattend file that the approved client should
        receive.

  [/ReferralServer:]
        The WDS server the client should download boot and install
        images from.

  [/BootImage:]
        The boot image the approved client will receive.

  [/User:]
        Sets permissions on the computer account object to give the
        specified user the necessary rights to join the domain.

  [/JoinRights:{JoinOnly | Full}]
        Specifies the type of rights to assign to the user. JoinOnly
        requires the administrator to reset the account before the
        user can join the domain. Full gives full access to the user,
        which includes the right to join the computer to the domain.

  [/JoinDomain:{Yes | No}]
        Specifies whether or not the computer should be joined to the
        domain as this computer account during an installation. The
        default is Yes.