Command option Sample:bcdboot /s

Search command sample in the internet.It is the result.

bcdboot /s オプション

bcdboot /s command to specify the firmware type of the target system partition by appending either UEFI
    Deployment considerations for Windows To Go (Windows 10) | Microsoft Docs : http://docs.microsoft.com/en-us/windows/deployment/planning/deployment-considerations-for-windows-to-go
bcdboot /s command to specify the firmware type of the target system partition by appending either UEFI
    Ultimate-Super-Smart-Secret 'Removable' USB Drive with Mega-Booting - Page 2 - Boot from USB / Boot anywhere - reboot.pro : http://reboot.pro/topic/19868-ultimate-super-smart-secret-removable-usb-drive-with-mega-booting/page-2
bcdboot /s to create the boot config
    windows 7 - Proper Imaging Procedures to Restore and Deploy Image with Separate System Reserved Partition - Server Fault : http://serverfault.com/questions/278814/proper-imaging-procedures-to-restore-and-deploy-image-with-separate-system-reser
bcdboot /S : /f UEFI
    windows 8 - Move EFI System Partition to another drive - Super User : http://superuser.com/questions/665923/move-efi-system-partition-to-another-drive
bcdboot /s S: /f ALL W:\Windows
    Deploying Windows Server 2012 without Running the Installer | sepago : http://www.sepago.com/blog/2012/08/29/deploying-windows-server-2012-without-running-the-installer
Bcdboot /s looks like it might work. I'll probably first use diskpart
     Need to move \Boot and bootmgr from D: to C: - Windows 7 Help : http://www.techtalkz.com/windows-help/95575-need-move-boot-bootmgr-d-c.html

bcdboot のオプション一覧