Windows 10: REAGENTC.EXE Unable to update Boot Configuration Data. Multiple Recovery Partitions

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.

:)

 

Failure to apply update due to recovery partition issue?

My suggestion would be to:

1) Disable WinRE

2) Delete partitions 4 and 5.

3) Extend the C drive to utilize the unallocated space (minus 750 MB)

4) Create a Recovery partition in that 750 MB unallocated space.

Step 1:

*******

To disable WinRE, run:

• reagentc /disable
  

Next, check if winre.wim has been moved to the c:\windows\system32\Recovery folder. To do so, run:

• dir c:\windows\system32\Recovery /a
  

Please post the outputs.

 

How does Windows boot to advanced recovery option e.g. command prompt?

- that gives me a 454 'Unexpected error' This tells me that the BCD is partially corrupted.

The commands: shutdown.exe /r /o /f /t 00
or: %SystemRoot%\System32\Cmd.exe /c reagentc /boottore&shutdown /r /f /t 00
should boot into Recovery if everything is configured correctly.
FYI, If Windows is configured correctly:

1. If Reagentc is disabled, you still can get into Recovery but with limited options.
2. If Reagentc is enabled, you'll get all options.
3. If you boot Windows using Recovery USB stick, You'll get into Recovery with couple of options missing.

Here's my suggestion if you want to try:
OPTION 1: Will save the trouble of re-install Windows.

1. Download the image of my first 3 partitions (450MB Recovery, 100 MB EFI partition, and 16MB unformatted primary)
   EFI_Boot-00-00.7z - Google Drive
2. Run Macrium and restore the image from step 1, overwriting your existing 1st three partitions, leaving C alone.
3. Delete the 490MB Recovery partition.
4. From Macrium, run fix boot problems.
5. Reboot. Open Admin command prompt then run Reagentc /info to make sure that it is enabled. If not, enable it.
   if failed to enable, reboot and try again.

OPTION 2: Assuming you've already had Windows backup with Macrium.

1. Wipe out the first 5 parttiions. (450MB, 100MB, 16MB, C Drive, 480MB)
2. Fresh install Windows 10
3. Restore C drive from backup image, run fix boot problems
4. repeat step 5 from OPTION 1 above.

 

Recreating and enabling the recovery environment (WinRE) from a recovery partition

I am trying to recreate my Windows recovery partition, and everything works until the end, but the agent shows as disabled right after I remove the letter that was assigned to the partition in order to execute the commands.

Here's the full recipe:

1. Select recovery partition and assign letter R: to it.



diskpart

list disk

select disk 0

list partition

select part 4

assign letter=R



2. Create WinRE directories in the partition:



mkdir R:\Recovery\

mkdir R:\Recovery\WindowsRE\



3. Copy the Winre.wim image to the partition

COPY C:\mount\Windows\System32\Recovery\winre.wim R:\Recovery\WindowsRE\



4. Set GUID for the partition to mark it as "Recovery" type (0 is for main disk)



diskpart

list disk

select disk 0

list partition

select part 4

set id=DE94BBA4-06D1-4D40-A16A-BFD50179D6AC



5. Disable WinRE (in case the "online" WinRE is already enabled)

reagentc /disable



6. Set the WinRE image



reagentc /setreimage /path R:\Recovery\WindowsRE\



7. Re-enable the WinRE environment



reagentc /enable



8. Doublecheck if the WinRE is active:



D:\iTunes>reagentc /info

Windows Recovery Environment (Windows RE) and system reset configuration

Information:



Windows RE status: Enabled

Windows RE location: \\?\GLOBALROOT\device\harddisk0\partition4\Recovery\WindowsRE

Boot Configuration Data (BCD) identifier: f15f803a-0bde-11ef-a1bf-f622ec6acd69

Recovery image location:

Recovery image index: 0

Custom image location:

Custom image index: 0



REAGENTC.EXE: Operation Successful.



9. Remove the letter from volume:



diskpart

list disk

select disk 0

list volume

select volume 4

remove letter=R



10. Doublecheck again if the WinRE is active:



D:\iTunes>reagentc /info

Windows Recovery Environment (Windows RE) and system reset configuration

Information:



Windows RE status: Disabled

Windows RE location: \\?\GLOBALROOT\device\harddisk0\partition4\Recovery\WindowsRE

Boot Configuration Data (BCD) identifier: f15f803a-0bde-11ef-a1bf-f622ec6acd69

Recovery image location:

Recovery image index: 0

Custom image location:

Custom image index: 0

What am I doing wrong? I really appreciate any help you can provide. Thank you so much!