SANITIZED DIAGNOSTIC EXCERPTS — Windows 11 KB5132061 OS: Windows 11 Pro 26H2, build 26300.9818, x64, en-US. Attempted update: KB5132061, target build 26300.9974. Update installation error: 0x800f0993 (PSFX_E_REBASE_HYDRATION_CANDIDATES_MISSING). Subsequent DISM repair source: Official 26H2 ISO build 26300.9457, Windows 11 Pro index 6. Command: DISM /Online /Cleanup-Image /RestoreHealth /Source:wim:D:\sources\install.wim:6 /LimitAccess Result: 0x800f0915 (CBS_E_REPAIR_CONTENT_MISSING). These are selected original log lines, not the complete CBS folder. Unrelated log records and identifying machine/session data have been omitted. Do not treat these excerpts as a complete diagnosis; request an appropriate secure channel for full original logs if needed. FILES 01_KB5132061_CBS_failure.txt: Hydration error and staging failure from update attempt (Nov 11 around 00:15). 02_ISO_DISM_CBS_failure.txt: Repair-source failure and payload summary (Nov 11 around 02:26–02:51). 03_DISM_command_result.txt: DISM repair command and final error. ====================================================================== Selected CBS log entries from update failure (timestamps retained) 2026-11-11 00:15:12, Info CSI 0000000b Reverse delta missing for file ftpsvc.dll, component Microsoft-Windows-IIS-FTPSvc, version 10.0.26100.9974, arch amd64, nonSxS, pkt {l:8 b:31bf3856ad364e35} but ignoring missing file since the flag is set 2026-11-11 00:15:12, Info SXS Could not find a path to hydrate file ftpsvc.dll from Microsoft-Windows-IIS-FTPSvc, version 10.0.26100.9818, arch amd64, nonSxS, pkt {l:8 b:31bf3856ad364e35} to Microsoft-Windows-IIS-FTPSvc, version 10.0.26100.9974, arch amd64, nonSxS, pkt {l:8 b:31bf3856ad364e35} failed.: 800f0993 [Error,Facility=(000f),Code=2451 (0x0993)] 2026-11-11 00:15:12, Info SXS Could not find a path to hydrate file ftpsvc.dll from Microsoft-Windows-IIS-FTPSvc, version 10.0.26100.1150, arch amd64, nonSxS, pkt {l:8 b:31bf3856ad364e35} to Microsoft-Windows-IIS-FTPSvc, version 10.0.26100.9974, arch amd64, nonSxS, pkt {l:8 b:31bf3856ad364e35} failed.: 800f0993 [Error,Facility=(000f),Code=2451 (0x0993)] 2026-11-11 00:15:12, Error SXS Could not hydrate ftpsvc.dll for Microsoft-Windows-IIS-FTPSvc, version 10.0.26100.9974, arch amd64, nonSxS, pkt {l:8 b:31bf3856ad364e35}: 800f0993 [Error,Facility=(000f),Code=2451 (0x0993)] 2026-11-11 00:15:16, Info CBS Exec: Failed to commit stager to stage execution chain. [HRESULT = 0x800f0993 - PSFX_E_REBASE_HYDRATION_CANDIDATES_MISSING] 2026-11-11 00:15:16, Info CBS Failed to stage execution chain. [HRESULT = 0x800f0993 - PSFX_E_REBASE_HYDRATION_CANDIDATES_MISSING] 2026-11-11 00:15:16, Error CBS Failed to process single phase execution. [HRESULT = 0x800f0993 - PSFX_E_REBASE_HYDRATION_CANDIDATES_MISSING] 2026-11-11 00:15:18, Info CBS Exec: Processing complete. Session: 31289763_3839883837, Package: Package_for_RollupFix~31bf3856ad364e35~amd64~~26100.1742.1.10, Identifier: KB5043080 [HRESULT = 0x800f0993 - PSFX_E_REBASE_HYDRATION_CANDIDATES_MISSING] 2026-11-11 00:15:18, Error CBS Failed to perform operation. [HRESULT = 0x800f0993 - PSFX_E_REBASE_HYDRATION_CANDIDATES_MISSING] 2026-11-11 00:15:18, Info CBS Session: 31289763_3839883837 finalized. Reboot required: no, RepairNeeded: no [HRESULT = 0x800f0993 - PSFX_E_REBASE_HYDRATION_CANDIDATES_MISSING] 2026-11-11 00:15:18, Info CBS Failed finalizing session [HRESULT = 0x800f0993 - PSFX_E_REBASE_HYDRATION_CANDIDATES_MISSING] ====================================================================== Selected CBS log entries from ISO-based repair failure (timestamps retained) 2026-11-11 02:26:36, Info CBS Repr: CSI Store check completes 2026-11-11 02:26:41, Error CBS Failed to look for file WinSxS\amd64_microsoft-windows-iis-ftpsvc_31bf3856ad364e35_10.0.26100.9818_none_e6020f5d45c7e010\r\ftpsvc.dll in some alternate sources: HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND) 2026-11-11 02:26:41, Info CBS Repr: Not able to find replacement file for component amd64_microsoft-windows-iis-ftpsvc_31bf3856ad364e35_10.0.26100.9818_none_e6020f5d45c7e010, file r\ftpsvc.dll from any local source 2026-11-11 02:26:41, Info CBS Repr: Finished repairing CSI store. 2026-11-11 02:51:15, Info CBS Failed to repair store. [HRESULT = 0x800f0915 - CBS_E_REPAIR_CONTENT_MISSING] 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-w..ommand-line-utility_31bf3856ad364e35_10.0.26100.1150_none_3d9125d57cc0da9e\r\WMIC.exe 2026-11-11 02:51:15, Info CBS Repair failed: Missing replacement payload. 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-mediaplayer-skins_31bf3856ad364e35_10.0.26100.1742_none_4506653e898e7468\r\Revert.wmz 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) wow64_microsoft-windows-mediaplayer-skins_31bf3856ad364e35_10.0.26100.1742_none_4f5b0f90bdef3663\r\Revert.wmz 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-iis-ftpsvc_31bf3856ad364e35_10.0.26100.9818_none_e6020f5d45c7e010\r\ftpsvc.dll 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-m..fdshowreversebridge_31bf3856ad364e35_10.0.26100.1591_none_ecf1b31b60415605\r\MFDshowReverseBridge.dll 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-p..nsimulation-desktop_31bf3856ad364e35_10.0.26100.1591_none_fcc568d921e94cb3\r\InputController.dll 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-p..nsimulation-desktop_31bf3856ad364e35_10.0.26100.1591_none_fcc568d921e94cb3\r\PerceptionSimulationManager.dll 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-p..nsimulation-service_31bf3856ad364e35_10.0.26100.1150_none_74a667b087b1ac17\r\PerceptionSimulationService.exe 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-p..nsimulation-service_31bf3856ad364e35_10.0.26100.1150_none_74a667b087b1ac17\r\SixDofControllerManager.ProxyStubs.dll 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-p..nsimulation-service_31bf3856ad364e35_10.0.26100.1150_none_74a667b087b1ac17\r\VirtualDisplayManager.ProxyStubs.dll 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-virtualcameramanager_31bf3856ad364e35_10.0.26100.1150_none_92a09c43b2997170\r\VirtualCameraManager.dll 2026-11-11 02:51:15, Info CBS (p) CSI Payload Corrupt (n) amd64_microsoft-windows-browserservice_31bf3856ad364e35_10.0.26100.9818_none_14801f844e25726b\r\browser.dll 2026-11-11 02:51:15, Info CBS Operation result: 0x800f0915 2026-11-11 02:51:15, Info CBS CSI Payload Corruption: 12 ====================================================================== Selected DISM log entries from ISO-based repair (timestamps retained) 2026-11-11 02:51:16, Info DISM DISM Package Manager: PID=24668 TID=2824 Error in operation: The repair content could not be found anywhere. (CBS HRESULT=0x800f0915) - CCbsConUIHandler::Error 2026-11-11 02:51:16, Error DISM DISM Package Manager: PID=24668 TID=20016 Failed finalizing changes. - CDISMPackageManager::Internal_Finalize(hr:0x800f0915) 2026-11-11 02:51:16, Error DISM DISM Package Manager: PID=24668 TID=20016 The repair content could not be found anywhere. The image may be corrupted. Check the internet connection or try to restore the image using the /source option. - GetCbsErrorMsg