Difference between Bootrec /RebuildBCD VS. BCDEdit

Question

_{Friday, June 7, 2019 11:40 PM}

Whats the difference between doing this:

bcdedit /export C:\BCDbackup

attrib bcd -s -h -r

ren c:\boot\bcd bcd.old

bootrec /RebuildBcd

and this:

Bcdboot C:\windows /s c: /f SYS 

Don't both of these essentially do the same thing? i.e., repair/create/write a new system store BCDstore?

Bcdboot can repair the system partition. 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. I assume this actually means create a new system store BCDstore?

TIA

All replies (5)

_{Monday, June 10, 2019 6:28 AM ✅Answered}

Hi,

BCDBoot copies the boot files from the Windows partition to the EFI System partition and creates the BCD store in the same partition.

I hope this will help.

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_{Friday, June 14, 2019 2:38 PM ✅Answered}

I mounted my EFI ESP System Partition temporarily and took a look around. 

there's an X:\EFI

there's an X:\EFI\Microsoft\Boot

there's an X: \EFI\Microsoft\Recovery

there's an X:\Boot

So I'm going to mark this as answered.

_{Saturday, June 8, 2019 1:33 AM}

BCDBoot is a command-line tool used to configure the boot files on a PC or device to run the Windows operating system.

BCDEdit is a command-line tool for managing Boot Configuration Data (BCD).

BCDEdit can be used for a variety of purposes, including creating new stores, modifying existing stores, adding boot menu options, and so on.

 Kindly go through the following references:

BCDBoot Command-Line Options

BCDEdit Command-Line Options

S.Sengupta,Microsoft MVP Windows and Devices for IT, Windows Insider MVP

_{Saturday, June 8, 2019 6:00 AM}

Bcdboot can repair the system partition. 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.

Is the system partition they are talking about here the EFI ESP aka Efi System Partition?

Exactly what system partition files are being created/copied by this command?

TIA

_{Thursday, June 13, 2019 9:49 AM}

Hi,

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