BCD Issues
The Windows BCD is a Microsoft file that stores information and parameters used to boot Windows.
BCD stands for Boot Configuration Data.
Microsoft provides the bcdedit utility in Windows to list and manipulate the BCD.
Grub2Win calls the bcdedit utility to obtain information about your machine's boot configuration.
If the bcdedit utility fails, it usually means that your BCD file is missing or corrupted.
BCD errors are not caused by Grub2Win!
Grub2Win simply detects errors that already exist in the Microsoft Windows BCD database.
When Grub2Win detects an error in the Windows BCD, the run may be aborted.
Here are instructions to rebuild your BCD if it is corrupt:
Try to boot using the Windows Advanced Startup Options or System Recovery Options from your hard drive.
If this does not work, boot from a Window Install DVD or a Windows Recovery USB flash drive.
Detailed instructions to rebuild your BCD will be found on this web page:
https://www.lifewire.com/how-to-rebuild-the-bcd-in-windows-2624508
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