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Rebuild BCD on Windows 10 & 11 [Commands & Best Practices]
Rebuilding BCD can help fix the Windows boot errors
4 min. read
Updated onJuly 24, 2024
updated onJuly 24, 2024
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You may need to rebuild BCD to fix any startup issues arising from missing or corrupted Windows boot configuration data (BCD), or when it’s not correctly configured.
While there are quite a few commands you can run to get the desired output, the bootrec command helps you to rebuild BCD easily and quickly. But, if yourWindows 11 PC is not booting, you can follow our post to resolve it with the tested solutions as described.
How to rebuild BCD (Boot Configuration Data) in Windows?
Before you proceed to rebuild BCD, you need toboot your PC into Safe Mode in Windows 11, following any of the methods mentioned in our detailed post.
1. Additional Windows installations in BCD are found
2. Additional Windows installation in BCD not found
Once you see the success message, you have successfully built BCD on your Windows 11 and fixed the boot issue.
Which command in Windows RE can you use to rebuild the BCD file?
If rebuilding the BCD store doesn’t fix the startup issue, you can export and delete the BCD store and then use the Bootrec.exe tool.
This will help you completely rebuild the BCD store and resolve any boot issues. You can execute the following commands at theWindows Recovery Environment(RE) Command Prompt:
bcdedit /export C:\BCD_Backup
c:
cd boot
attrib bcd -s -h -r
ren c:\boot\bcd bcd.old
bootrec /RebuildBcd
You can also use these commands torebuild the boot partition on Windows 11easily. You can refer to our detailed guide for more information.
Rebuilding the Boot Configuration Data (BCD) helps you find and fix missing and corrupted BCD store, and even repair it when it’s not properly configured.
For example, you can also rebuild BCD whenbootrec is not recognized in Windows 11, as explained in our guide.
It basically recreates the bootloader configuration store and adds copies of Windows found on your PC to the BCD bootloader.
But if you are facing issues likeBootrec/Fixboot access is denied, follow the instructions in our manual to fix the error.
If you have any other queries related to rebuilding BCD, you can feel free to let us know in the comments box below.
Madhuparna Roy
A diploma holder in computers and with a keen interest in technology, Madhuparna is passionate about writing How-to guides and helping people solve the most intricate Windows issues.
It all started with the evolution of mobile phones and Google, and that has now settled with Windows.
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