Windows 11 26H2 Won't Boot After KB5132061 Update – Error 0xc0000001, Corrupt Boot Binary, DISM 0x800f0915. How Can I Repair Without Reinstalling?

I'm looking for help with a serious Windows 11 boot failure that happened immediately after a Windows update on November 11, 2026.

My computer was running Windows 11 Pro 26H2, build 26300.9818 (KB5127936). When I selected "Update and shut down," Windows began processing the update normally, but during the process it unexpectedly entered Recovery.

Since then, Windows has been completely unable to boot, including in Safe Mode.

The pending update appears to have been KB5132061 (build 26300.9974).

Errors I'm receiving

Recovery error: 0xc0000001

Startup Repair: "A recently serviced boot binary is corrupt."

DISM RestoreHealth: 0x800f0915 – The repair content could not be found anywhere.

DISM RevertPendingActions: 0x800f082f

System Restore: Failed with error 0x800701b1.

DISM ScanHealth: The component store is repairable.

SFC: Windows Resource Protection did not find any integrity violations.

The DISM logs also reported approximately 1,537 corrupted or missing component payloads that could not be repaired.

Everything I've already tried

Startup Repair: Failed repeatedly.

Safe Mode: Unable to boot; returns to Recovery.

System Restore: Initially failed, and now no restore points are available.

Uninstall latest quality update: Windows says it cannot find an eligible update to uninstall.

CHKDSK: Completed without finding file-system errors.

SFC offline scan: Completed without integrity violations.

BCDBoot: Successfully rebuilt the EFI boot files, but Windows still won't boot.

DISM /RevertPendingActions: Failed with error 0x800f082f.

Pending update recovery: Renamed pending.xml and removed its corresponding PendingXmlIdentifier registry value after creating backups.

DISM /ScanHealth: Confirmed repairable component-store corruption.

DISM /RestoreHealth: Failed repeatedly with error 0x800f0915.

Windows installation USB repair attempts

I created a Windows 11 Pro 26H2 installation USB using Microsoft's Media Creation Tool.

The installation image was build 26300.9711, while my damaged Windows installation was build 26300.9818.

I successfully exported the USB's split SWM files into a WIM image, verified the Windows 11 Pro image, and mounted it using DISM.

I then attempted an offline repair using the mounted Windows folder as the repair source.

The repair consistently failed at approximately 84.9% with error 0x800f0915.

My question

Is there a confirmed issue with KB5132061 or KB5127936 causing Windows 11 26H2 systems to become unbootable?

More importantly, is there a way to repair this Windows installation using a newer, fully updated repair image without reinstalling Windows?

I'm considering integrating KB5132061 into a Windows 11 Pro 26H2 repair image and trying DISM again, but I would appreciate guidance from Microsoft engineers or anyone who has successfully recovered from this specific problem.

I urgently want to preserve my installed applications, settings, and personal files. I have numerous programs and configurations that would be difficult to recreate.

My Windows installation is on an M.2 SSD, which remains accessible through Windows Recovery.

Has anyone experienced the same corrupted boot binary message or DISM error 0x800f0915 after these updates and found a solution that doesn't require a clean installation?

Any technical guidance would be appreciated. Title: Windows 11 26H2 Won't Boot After KB5132061 Update – Error 0xc0000001, Corrupt Boot Binary, DISM 0x800f0915. How Can I Repair Without Reinstalling?

I'm looking for help with a serious Windows 11 boot failure that happened immediately after a Windows update on November 11, 2026.

My computer was running Windows 11 Pro 26H2, build 26300.9818 (KB5127936). When I selected "Update and shut down," Windows began processing the update normally, but during the process it unexpectedly entered Recovery.

Since then, Windows has been completely unable to boot, including in Safe Mode.

The pending update appears to have been KB5132061 (build 26300.9974).

Errors I'm receiving

Recovery error: 0xc0000001

Startup Repair: "A recently serviced boot binary is corrupt."

DISM RestoreHealth: 0x800f0915 – The repair content could not be found anywhere.

DISM RevertPendingActions: 0x800f082f

System Restore: Failed with error 0x800701b1.

DISM ScanHealth: The component store is repairable.

SFC: Windows Resource Protection did not find any integrity violations.

The DISM logs also reported approximately 1,537 corrupted or missing component payloads that could not be repaired.

Everything I've already tried

Startup Repair: Failed repeatedly.

Safe Mode: Unable to boot; returns to Recovery.

System Restore: Initially failed, and now no restore points are available.

Uninstall latest quality update: Windows says it cannot find an eligible update to uninstall.

CHKDSK: Completed without finding file-system errors.

SFC offline scan: Completed without integrity violations.

BCDBoot: Successfully rebuilt the EFI boot files, but Windows still won't boot.

DISM /RevertPendingActions: Failed with error 0x800f082f.

Pending update recovery: Renamed pending.xml and removed its corresponding PendingXmlIdentifier registry value after creating backups.

DISM /ScanHealth: Confirmed repairable component-store corruption.

DISM /RestoreHealth: Failed repeatedly with error 0x800f0915.

Windows installation USB repair attempts

I created a Windows 11 Pro 26H2 installation USB using Microsoft's Media Creation Tool.

The installation image was build 26300.9711, while my damaged Windows installation was build 26300.9818.

I successfully exported the USB's split SWM files into a WIM image, verified the Windows 11 Pro image, and mounted it using DISM.

I then attempted an offline repair using the mounted Windows folder as the repair source.

The repair consistently failed at approximately 84.9% with error 0x800f0915.

My question

Is there a confirmed issue with KB5132061 or KB5127936 causing Windows 11 26H2 systems to become unbootable?

More importantly, is there a way to repair this Windows installation using a newer, fully updated repair image without reinstalling Windows?

I'm considering integrating KB5132061 into a Windows 11 Pro 26H2 repair image and trying DISM again, but I would appreciate guidance from Microsoft engineers or anyone who has successfully recovered from this specific problem.

I urgently want to preserve my installed applications, settings, and personal files. I have numerous programs and configurations that would be difficult to recreate.

My Windows installation is on an M.2 SSD, which remains accessible through Windows Recovery.

Has anyone experienced the same corrupted boot binary message or DISM error 0x800f0915 after these updates and found a solution that doesn't require a clean installation?

Any technical guidance would be appreciated.