REAGENTC.EXE Unable to update Boot Configuration Data. Multiple Recovery Partitions

Question

Unable to install Windows 11 23H2 update from 22H2 with error code "0x80070002" unable to determine if sufficient disk space available. I have run chkdsk, scannow, removed old softwaredistribution folders etc but each time it fails to install.

I have since discovered that there is no winre.wim file when using reagentc /info. And when trying to enable reagentc it is unable to configure boot configuration data.

Answer 1

(Assuming you haven't turned off the computer after running those commands.)

If you're still in the Diskpart environment, please run:

exit

This exits from the Diskpart environment.

Then, run the following:

xcopy /h Y:\EFI\Microsoft\Boot\BCD D:\

format Y: /fs:FAT32 /q

bcdboot D:\Windows /s Y: /f UEFI

Post the output.

Note: When you're prompted for the volume label when running the 'format' command, type "ESP" and press Enter.

Answer 2

Hi Peter, This is Ramesh.

1. You can upgrade to 23H2 from 22H2 using the tiny enablement package from Microsoft.

Please run "winver.exe" and note the OS Build number.

If your Windows 11 version is "22H2" and the build number is higher than "22621.2506", you can install the enablement package, which easily upgrades the OS to 23H2.

https://catalog.sf.dl.delivery.mp.microsoft.com...

2. The ReagentC output shows the BCD is inaccessible. It's also why the 23H2 setup failed.

---

Please do the following:

• Open Disk Management and maximize it. Post a screenshot.
• Share the file "C:$WINDOWS.~BT\Sources\Panther\setupact.log" on OneDrive or any file sharing service and post the link here.
• Create a Windows 11 USB setup disk and keep it ready.

Create installation media for Windows - Microsoft Support:

https://support.microsoft.com/en-us/windows/cre...

Answer 3

Hi Ramesh

1. When I ran Winver.exe, the OS Build number showing is Windows 11 Ver 21H2 Build 22000.2538. The Windows Update history shows successfully installed to Windows 11 22H2 on 14/5/23.
2. Disk Management screenshot

Share the file "C:$WINDOWS.~BT\Sources\Panther\setupact.log" on OneDrive or any file sharing service and post the link here.

setupact.log

Answer 4

Thanks, Peter.

Assuming you've created an USB setup disk, please do the following:

Boot the computer using the Windows 11 USB setup disk. To do so, you may need to change the boot order in the BIOS/UEFI settings. Consult your system or motherboard manual to learn how to access the UEFI settings for your model.

On the Windows Setup language selection screen, press Shift + F10 to enter Windows RE Command Prompt.

In WinRE Command Prompt, please run these commands:

diskpart

select disk 1

list part

select part 1

assign letter=Y

list vol

exit

Post the output or photo of the output screen here.

(Don't quit WinRE yet. We need to run some more commands in the *same* WinRE session.)

Answer 5

Hi Ramesh

When i booted, this was my option, I did boot from the uefi: SanDisk, partition 1.

Post the output or photo of the output screen here.