Windows 10: Cumulative updates of May and June 2025 failing in Windows 10 21H2 hardened PCs

I have a Windows 10 21H2 LTSC PC that needs offline manual updating. It is a hardened machine with no network.I patched the ISO with offline servicing with the following patches:windows10.0-kb5011543-x64_1c97e86392f8e18fe415630f60608a9091f28bbd.msuwindows10.0-kb5048652-x64_279b3aca56a2aa72aa2d08ccc30fad69bd5a1e29.msuSo far I got to update them for the January 2025 Cumulative update and then after I managed to install the April 2025 update. Unfortunately the two last CU of May or June haven´t worked and show the same error: 2147942413 error invalid dataI even have tried the out-of-band CU of Ma

:)

 

Application of settings described in KB5004442 DCOM hardening

Hello,

The updates described in KB5004442 which will be coming in June of 2022 will "force" a hardened DCOM setting for clients. Will these changes be released in the cumulative security update for the month of June or will it be a separate update? If the June update is skipped, will the changes be applied in future cumulative updates? If a user were to skip the June 2022 update which applies the hardening settings in KB5004442, would the settings be applied in any future cumulative update?

 

Cumulative Update for Windows 10 for x64-based Systems (KB3156387) will not install

Anyone else having problems getting the Cumulative Update for Windows 10 for x64-based Systems (KB3156387) installed? This update has been failing for me & doing a failed to update after downloading & reboot, then rebooting & removing the update.

V 10.0 build 10240

 

Windows 10 Cumulative Updates failing to install since April

The last successful Windows 10 Cumulative Update was in March (KB4551762). Since then, every single update has failed to install:

20th June

2020-06 Cumulative Update for Windows 10 version 1909 for x64-based Systems (KB4560960)

FAILED: 0x800f0988

9th June

2020-05 Cumulative Update for Windows 10 version 1909 for x64-based Systems (KB4556799)

FAILED: 0x800f0988

8th May

2020-04 Cumulative Update for Windows 10 version 1909 for x64-based Systems (KB4549951)

FAILED: 0x800f0986

24th April

2020-04 Cumulative Update for Windows 10 version 1909 for x64-based Systems (KB4549951)

FAILED: 0x8024000b

23rd April

2020-04 Cumulative Update for Windows 10 version 1909 for x64-based Systems (KB4550945)

FAILED: 0x800f0988

2nd April

2020-03 Cumulative Update for Windows 10 version 1909 for x64-based Systems (KB4541335)

FAILED: 0x800f0986

Steps I have already taken to resolve the issue:

• Windows Update Troubleshooter: Did not find any issues;
  
• sfc/scannow: Windows Resource Protection: Did not find any integrity violations.
  
• DISM /Online /Cleanup-Image /RestoreHealth: The restore operation completed successfully.
  
• ‘In-place’ re-installation using Image Creation Tool or ISO file: Does not support Windows Enterprise.
  
• Re-installation using standalone Windows Installer MSU file (downloaded from Windows Update Catalogue): Installation failed.
  
• deleted all files from C:\WINDOWS\SoftwareDistribution\Download: It did not help.
  
• cleaned C:\WINDOWS\SoftwareDistribution\SLS (deleted all sub-folders except those dated 14th March = last successful Windows update): It did not help.
  

The laptop in part of a domain and I consider Resetting PC as the last resort.