This is what I get from uupdump.net when trying to download ssu-19041.841-x64.cab: The 844 LCU updates without a new SSU, so I'm not sure this is needed right now.
Windows Pro 19043.844 X64 W10UI_9.2 Code: [1] Target (x64): "g:" [2] Updates: "c:\21H1" [3] DISM: "Windows 10 ADK" [4] Enable .NET 3.5: YES [5] Cleanup System Image: NO [7] Update WinRE.wim: YES [M] Mount Directory: "C:\W10UImount_23854" [E] Extraction Directory: "C:\W10UItemp_16218" ============================================================ Change a menu option, press 0 to start the process, or 9 to exit: Code: Copying DVD Drive contents to work directory ============================================================ ============================================================ Extracting .cab files from .msu files ============================================================ 1/2: windows10.0-kb4577586-x64_Adobe.Flash.entfernen.msu 2/2: windows10.0-kb4601050-x64-ndp48_Kumulatives.Net.3.5.4.8.msu ============================================================ Extracting files from update cabinets (.cab) *** This will require some disk space, please be patient *** ============================================================ 1/7: Windows10.0-KB4577586-x64.cab [Flash] 2/7: windows10.0-kb4586858-x64_DU.forSafeOS.cab [WinPE] 3/7: Windows10.0-KB4601050-x64-NDP48.cab [NetFx] 4/7: windows10.0-kb4601382-x64.Kumulatives.19041.844.cab [LCU] 5/7: windows10.0-kb5000736-x64.21H1.Enablement.Package.cab [Enablement] 6/7: Windows10.0-KB5000751-x64_DU.Sources.cab [Setup DU] 7/7: Windows10.0-KB5000911-x64.SSU.cab [SSU] ============================================================ Mounting sources\install.wim - index 1/1 ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Mounting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Checking Updates... ============================================================ ============================================================ Installing servicing stack update... ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_ServicingStack~31bf3856ad364e35~amd64~~19041.841.1.0 [==========================100.0%==========================] The operation completed successfully. ============================================================ Installing updates... ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 3 - Adding package Package_for_KB4577586~31bf3856ad364e35~amd64~~10.0.1.2 [==========================100.0%==========================] Processing 2 of 3 - Adding package Package_for_DotNetRollup~31bf3856ad364e35~amd64~~10.0.4330.6 [==========================100.0%==========================] Processing 3 of 3 - Adding package Package_for_KB5000736~31bf3856ad364e35~amd64~~10.0.1.2 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_RollupFix~31bf3856ad364e35~amd64~~19041.844.1.7 [==========================100.0%==========================] The operation completed successfully. ============================================================ Adding .NET Framework 3.5 feature ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19043.844 Enabling feature(s) [==========================100.0%==========================] The operation completed successfully. ============================================================ Reinstalling cumulative update(s)... ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19043.844 Processing 1 of 2 - Adding package Package_for_DotNetRollup~31bf3856ad364e35~amd64~~10.0.4330.6 [==========================100.0%==========================] Processing 2 of 2 - Adding package Package_for_RollupFix~31bf3856ad364e35~amd64~~19041.844.1.7 [==========================100.0%==========================] The operation completed successfully. ============================================================ Updating winre.wim ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Mounting image [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_ServicingStack~31bf3856ad364e35~amd64~~19041.841.1.0 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_KB4586858~31bf3856ad364e35~amd64~~10.0.1.0 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_KB5000736~31bf3856ad364e35~amd64~~10.0.1.2 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 [=========== 20.0% ] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image File : C:\W10UI_9.2\winre.wim Image Index : 1 Saving image [==========================100.0%==========================] Unmounting image [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Exporting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Adding updated winre.wim ============================================================ 1 Datei(en) kopiert. ============================================================ Unmounting sources\install.wim - index 1/1 ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image File : C:\W10UI_9.2\DVD10UI\sources\install.wim Image Index : 1 Saving image [==========================100.0%==========================] Unmounting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Rebuilding sources\install.wim ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Exporting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Mounting sources\boot.wim - index 1/2 ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Mounting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Checking Updates... ============================================================ ============================================================ Installing servicing stack update... ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_ServicingStack~31bf3856ad364e35~amd64~~19041.841.1.0 [==========================100.0%==========================] The operation completed successfully. ============================================================ Installing updates... ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_KB4586858~31bf3856ad364e35~amd64~~10.0.1.0 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_KB5000736~31bf3856ad364e35~amd64~~10.0.1.2 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_RollupFix~31bf3856ad364e35~amd64~~19041.844.1.7 [==========================100.0%==========================] The operation completed successfully. ============================================================ Resetting WinPE image base ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.844 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.844 [=========== 20.0% ] The operation completed successfully. ============================================================ Unmounting sources\boot.wim - index 1/2 ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image File : C:\W10UI_9.2\DVD10UI\sources\boot.wim Image Index : 1 Saving image [==========================100.0%==========================] Unmounting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Mounting sources\boot.wim - index 2/2 ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Mounting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Checking Updates... ============================================================ ============================================================ Installing servicing stack update... ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_ServicingStack~31bf3856ad364e35~amd64~~19041.841.1.0 [==========================100.0%==========================] The operation completed successfully. ============================================================ Installing updates... ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_KB4586858~31bf3856ad364e35~amd64~~10.0.1.0 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_KB5000736~31bf3856ad364e35~amd64~~10.0.1.2 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.1 Processing 1 of 1 - Adding package Package_for_RollupFix~31bf3856ad364e35~amd64~~19041.844.1.7 [==========================100.0%==========================] The operation completed successfully. ============================================================ Resetting WinPE image base ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.844 [==========================100.0%==========================] The operation completed successfully. Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image Version: 10.0.19041.844 [=========== 20.0% ] The operation completed successfully. ============================================================ Unmounting sources\boot.wim - index 2/2 ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Image File : C:\W10UI_9.2\DVD10UI\sources\boot.wim Image Index : 2 Saving image [==========================100.0%==========================] Unmounting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Rebuilding sources\boot.wim ============================================================ Deployment Image Servicing and Management tool Version: 10.0.19041.1 Exporting image [==========================100.0%==========================] Exporting image [==========================100.0%==========================] The operation completed successfully. ============================================================ Adding setup dynamic update(s)... ============================================================ Windows10.0-KB5000751-x64_DU.Sources.cab ============================================================ Removing temporary extracted files... ============================================================ ============================================================ Creating updated ISO file... ============================================================ OSCDIMG 2.56 CD-ROM and DVD-ROM Premastering Utility Copyright (C) Microsoft, 1993-2012. All rights reserved. Licensed only for producing Microsoft authorized content. Scanning source tree (500 files in 41 directories) Scanning source tree complete (901 files in 86 directories) Computing directory information complete Image file is 5959942144 bytes (before optimization) Writing 901 files in 86 directories to Win10_19043.844_x64_2021-02-18.iso 100% complete Storage optimization saved 24 files, 14194688 bytes (1% of image) After optimization, image file is 5947807744 bytes Space saved because of embedding, sparseness or optimization = 14194688 Done. ============================================================ Finished
The 19041.504 ssu is required (or the current 19042.740 is good too), no need to install the new one, or just install it, won't matter.
OK, so the rename is not a big issue. I'll role back to a 804 baseline and start over. Thanks for alerting me to uupdump.net availability.
Ok, I think we have been a bit out of sync in messaging. So I don't think I need the new SSU. Thanks.