Boot Configuration Data file is very important to Windows startup.
If it is deleted or corrupted, your gear may fail to boot up.
In this post onMiniTool Website, we will show you how to rebuild BCD for you.

If you are curious, scroll down to get more details.
What Is BCD?
BCD or Boot Configuration Data is a firmware-independent database file that contains boot-time configuration data.

How to Rebuild BCD Windows 10/11?
Heres how to do it:
Move 1: Enter WinRE
Step 1.
When the Windows blue logo appears on the screen, press thepowericon again to shut down your box.
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Repeat the step two or more times until you see theAutomatic Repairscreen.
Click onAdvanced optionsto enter Windows Recovery Environment.
Move 2: Rebuild BCD
Step 1.

Go toTroubleshoot>Advanced options>Command Prompt.
Step 2. bang out the following command in the black console and hitEnter.
bootrec /rebuildbcd
Step 3.
If this doesnt help, you’re able to set the boot path manually.
In the command window of WinRE, typebcdboot c:\windows /s c:and hitEnter.
Herec:refers to the system drive.
you might only use this method when you know the exact drive where Windows is installed.
How to Back up & Restore BCD Registry File in Windows 10?
Boot Configuration Data is so important that any corruption or deletion in it will lead to Windows boot issues.
Therefore, any operation about BCD file must be executed with caution.
It is important to create a backup of the original BCD registry file in case something goes wrong.
Heres how to back up BCD registry file and how to restore it.
LaunchCommand Promptas an administrator.
After the process is done, you will receive the notice of successful completion.
bcdedit /export f:\01.bcd
Step 3.
The restoration process is pretty easy, just execute the following command in the elevatedCommand Prompt.
Things will be easier if you have created a system image.
With a system image in hand, you might restore your system easily.
Lets see how to use this tool to back up your Windows within just a few steps.
Double-choose the shortcut of MiniTool ShadowMaker to launch it.
MiniTool ShadowMaker TrialClick to Download100%Clean & Safe
Step 2.
In theBackuppage, you might see the system is selected by default inSOURCE.
As for choosing a storage path for the system image, go toDESTINATION.
Click onBack Up Nowto start the process right now.