0x80004005 Failed to Backup BCD Windows 10 Windows update/upgrade

[carlcapone]

Hi everyone,

I have been hit with the dreaded 0x80004005 Windows update error. I am trying to update my Windows 10 Pro 1809 to the latest 1903 version. Here is my situation. I have an old X58 system running on an M.2 SSD using clover to boot through UEFI. The EFI is stored on a local hard drive which in turn is selected during boot up. Is there any way to fix the Windows update issue without modifying my current boot setup? Any help is appreciated. Thank you.

 

[Sysnative Windows Update]

Hi!

You could try recreating the BCD, but use EXTREME caution and backup your data before attempting to do this:

You will need a bootable Windows disc or recovery flash drive to boot from to do this.
How to create a recovery flash drive: https://support.microsoft.com/en-us/...recovery-drive

After you create the recovery drive, boot from it by using the advanced startup options and choosing boot from device (or using the UEFI interface, whichever is simpler :) ).
Here's the instructions that other users have had success with:



Alright, apparently the issue is with the BCD (Boot Configuration Data). A few users reported that rebuilding it solved that issue.

https://answers.microsoft.com/en-us/...4-9ae12cfd89a2 - "Most Helpful Reply" from Cifad

If you cannot read the commands properly, here goes (to be entered in the command prompt from the Recovery Environment):

diskpart - Opens the Disk Partitionning tool
select disk 0 - Will select your first hard drive (the one with the Windows partition on it)
list volume - Note the number of the partition that have no drive letter assigned to it, is of 260MB of size and have "FAT32" listed under the "FS" column
select volume X - X will be the number of your partition with a size of 260MB, the EFI System Partition one that you identified in the last command
assign letter=Z: - It'll assign the Z: letter to the EFI System Partition
exit - To exit the diskpart utility

Now you'll be back in the command prompt, enter the following commands:

cd /d Z:\EFI\Microsoft\Boot - Goes to the "Boot" directory in the Z: partition
attrib Z:\EFI\Microsoft\Boot\BCD -h -r -s - Removes the hidden, read-only and system attributes from the BCD folder
ren Z:\EFI\Microsoft\Boot\BCD BCD.old - Renamed the BCD folder to BCD.old
bootrec /rebuildbcd - This command will rebuild the BCD.

When it asks you Add the installation to boot list?, press on y followed by Enter and if it succeed, you'll have a The operation completed successfully message. Once you're done, close the command prompt, restart your computer and try to upgrade again.