Windows 11: reagentc /enable fails with "Unable to update Boot Configuration Data" on GPT layout

Question

Windows 11: reagentc /enable fails with "Unable to update Boot Configuration Data" on GPT layout

joako becerra 0

HELP

Hi, I am trying to enable the Windows Recovery Environment (WinRE) on Windows 11, but the command reagentc /enable consistently fails with the error: "REAGENTC.EXE: Unable to update Boot Configuration Data." System details and troubleshooting steps already performed: - Disk Layout: GPT-based disk layout with a separate EFI system partition and a dedicated Recovery partition containing winre.wim. - BCD Rebuild: Fully rebuilt the BCD store using bcdboot C:\Windows /s [Drive] /f UEFI. - Path Configuration: Set the recovery image path using reagentc /setreimage /path pointing directly to the recovery partition's WindowsRE directory. - Partition Attributes: Verified the recovery partition has the correct GUID type and GPT attributes. - Current Behavior: Despite clean BCD files, correct paths, and successful extraction of winre.wim, reagentc /enable refuses to update the BCD configuration and keeps throwing the same error. What is blocking reagentc from writing the recovery sequence to the BCD store, and how can this synchronization failure be resolved?

Ramesh Srinivasan 89,945 Reputation points Independent Advisor

2026-11-09T07:25:18.0466667+00:00
Hi,

Please right-click Start, and click Disk Management. Maximize Disk Management, adjust the column widths in the top pane to make all the entries visible. Post a screenshot.

From Command Prompt admin, run these commands and post the output:

bcdedit bcdedit /export C:\bcd.bak

Post the output.
Ramesh Srinivasan 89,945 Reputation points Independent Advisor

2026-11-09T07:39:23.7866667+00:00
0xC1900101 - 0x20017 can be caused by outdated BIOS/chipset drivers or hardware issues.

Please enable Memory Integrity. To do so, go to Windows Security → Device security → Core isolation details → Memory integrity. If it shows any incompatible drivers, post the screenshot here.

Also, share your Farbar scan logs for analysis.

Download Farbar Recovery Scan Tool 64-bit FRST64.exe

If the OS language is not English, rename FRST64.exe to FRST64English.exe.

Run the program. Don't check or uncheck any options. Click "Scan".

Add the two logs, FRST.txt and Addition.txt, to a zip archive.

Share the zip file on OneDrive or GoFile.io, and post the link here.

Note: If Microsoft Edge or Chrome mislabels the Farbar Scanner executable as PUA/malware, choose to keep it by tapping … in the bottom bar, choosing Keep, and then choosing Keep anyway in the dialog that appears. See this screenshot. It's a safe tool used in most antimalware forums.

Standard Disclaimer: There is a link to a non-Microsoft website. The page appears to provide accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as PUPs (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

2 answers

Your answer

Ramesh Srinivasan 89,945 Reputation points Independent Advisor

2026-11-09T07:25:18.0466667+00:00

Hi,

Please right-click Start, and click Disk Management. Maximize Disk Management, adjust the column widths in the top pane to make all the entries visible. Post a screenshot.

From Command Prompt admin, run these commands and post the output:

bcdedit bcdedit /export C:\bcd.bak

Post the output.
Ramesh Srinivasan 89,945 Reputation points Independent Advisor

2026-11-09T07:39:23.7866667+00:00

0xC1900101 - 0x20017 can be caused by outdated BIOS/chipset drivers or hardware issues.

Please enable Memory Integrity. To do so, go to Windows Security → Device security → Core isolation details → Memory integrity. If it shows any incompatible drivers, post the screenshot here.

Also, share your Farbar scan logs for analysis.

Download Farbar Recovery Scan Tool 64-bit FRST64.exe

If the OS language is not English, rename FRST64.exe to FRST64English.exe.

Run the program. Don't check or uncheck any options. Click "Scan".

Add the two logs, FRST.txt and Addition.txt, to a zip archive.

Share the zip file on OneDrive or GoFile.io, and post the link here.

Note: If Microsoft Edge or Chrome mislabels the Farbar Scanner executable as PUA/malware, choose to keep it by tapping … in the bottom bar, choosing Keep, and then choosing Keep anyway in the dialog that appears. See this screenshot. It's a safe tool used in most antimalware forums.

Standard Disclaimer: There is a link to a non-Microsoft website. The page appears to provide accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as PUPs (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

Answer 1

joako becerra 0

User's image

I was able to fix this, but when I try to update Windows using my ISO, it gives me that message. User's image

0 comments

Answer 2

joako becerra 0

I solved the problem, i dont know how, but use gemini for help me

Ramesh Srinivasan 89,945 Reputation points Independent Advisor

2026-11-09T10:10:19.01+00:00

Ok. Thanks for the feedback. I'm glad the issue is resolved.

Regards,