By default, this entry is placed as the first item in the boot list. BCDBoot adds a firmware entry in the NVRAM to point to the Windows Boot Manager.On UEFI PCs, BCDBoot can update the firmware entries in the device’s NVRAM: Use the /d option to preserve the existing boot order. By default, BCDBoot moves the boot entry for the selected Windows partition to the top of the Windows Boot Manager boot order.Use the /m option to retain the values from an existing boot entry when you update the system files. If there is already a boot entry for this Windows partition, by default, BCDBoot erases the old boot entry and its values.Use the /c option to ignore the old settings and start fresh with a new BCD store.
In Windows 10 and later, During an upgrade, BCDBoot preserves any other existing boot entries, such as debugsettings, when creating the new store.BCDBoot creates a new BCD store and initialize the BCD boot-environment files on the system partition, including the Windows Boot Manager, using the %WINDIR%\System32\Config\BCD-Template file.To configure the system partition, BCDBoot copies a small set of boot-environment files from the installed Windows image to the system partition.īCDBoot can create a Boot Configuration Data (BCD) store on the system partition using the latest version of the Windows files: Windows Assessment and Deployment Kit (Windows ADK)Ĭ:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Deployment Tools\amd64\BCDBoot\BCDBoot.exe Windows Preinstallation Environment (WinPE) If you've installed more than one copy of Windows on a PC, you can use BCDBoot to add or repair the boot menu. Set up or repair the boot menu on a dual-boot PC.If the system partition has been corrupted, you can use BCDBoot to recreate the system partition files by using new copies of these files from the Windows partition. To learn more, see Boot to VHD (Native Boot): Add a Virtual Hard Disk to the Boot Menu.
Set up the PC to boot to a virtual hard disk (VHD) file that includes a Windows image.To learn more, see Capture and Apply Windows, System, and Recovery Partitions. In a typical image-based Windows deployment, use BCDBoot to set up the firmware and system partition to boot to your image.
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