Rebuilding the BCD involves recreating the boot configuration data from scratch, while repairing the MBR can help to fix any issues with the partition table that may be affecting your system’s ...

To fix the :\boot.BCD error, start by booting your system with your Windows installation media. Select “Repair your computer,” navigate to “Troubleshoot,” then “Advanced options,” and ...

This error is received when the Boot Configuration or BCD file is missing some required information or has become corrupted. The accompanying error codes mentioned could be 0xc0000034.

These errors can usually be fixed by the Startup Repair tool that we discussed earlier, but you can also restore the BCD manually.