[German]Microsoft has released on September 6, 2018 update KB4023057 again to (almost) all Windows 10 builds. The aim of this update is, to prepare the machine for upcoming feature upgrade to Windows 10 V1809.
I read about this update at askwoody.com, where the update for Windows 10 Version 1703 (an older Windows 10 build) has been offered. It is an update that Microsoft periodically releases (see link list at end of article). The last version was released on August 9, 2018 on Windows 10 machines.
Update KB4023057 has the title 'Update to Windows 10, versions 1507, 1511, 1607, 1703, and 1709 for update reliability'. This update is available from the RTM version of Windows 10 version 1507 to version 1709 (but not for the current version 1803). Microsoft writes in the KB article about the update that it improves the reliability of the Windows Update service:
This update includes reliability improvements to Windows update service components in Windows 10, versions 1507, 1511, 1607, 1703, and 1709. It may also take steps to free up disk space on your device if you do not have enough disk space to install Windows updates.
This update includes files and resources that address issues that affect the update processes in Windows 10 that may prevent important Windows updates from being installed. These improvements help make sure that updates are installed seamlessly on your device, and they help improve the reliability and security of devices that are running Windows 10.
By the way, this is the identical text that Microsoft has already published for August 2018. Also the following items has been mentioned within the August 2018 version of this update.
- This update may request your device to stay awake longer to enable installation of updates.
Microsoft promises: The installation will respect any user-configured sleep configurations and also your "active hours" when you use your device the most.
- This update may try to reset network settings if problems are detected, and it will clean up registry keys that may be preventing updates from being installed successfully.
- This update may repair disabled or corrupted Windows operating system components that determine the applicability of updates to your version of Windows 10.
- This update may compress files in your user profile directory to help free up enough disk space to install important updates.
- This update may reset the Windows Update database to repair the problems that could prevent updates from installing successfully. Therefore, you may see that your Windows Update history was cleared.
In August I wrote: It seems that more serious issues have been found in the Windows update process, which prevented the installation of important updates. But now it seems, that Microsoft re-released this updates to fix blocked update components, a user intentional has been established in Windows 10 (for instance using tools like Windows Update MiniTool (WUMT)).
It is also interesting to note that the update may start compressing files in the user profile directory when space becomes limited. This is especially true for upcoming feature updates and is a tribute (imho) to the large footprint of Windows 10 on cheap machines with 64 GB eMMC. These interventions also explain why the update installation can take an exceptionally long time.
The KB article contains hints to systems where the memory on the system drive becomes low and compression of files is also mentioned. If files are compressed, it looks like this in the Explorer folder display:
The update is only offered exclusive via Windows Update on machines that require it. It is also applied to machines that have not installed the latest updates. The following files will be replaced from this update:
- Luadgmgt.dll: To my knowledge part of a Windows Compatibility DLL – the 'Lua' could stand for "least-privileged user account" (see also). The purpose of this dll is unknown to me.
- Sedlauncher.exe: Located at C:\Program Files\rempl\sedlauncher.exe, it belongs to REMSH (see Windows 10: What is REMSH.exe for?). The file repaces the old Rempl.exe (see) and is responsible for improved update reliability ('Windows Remedation).
- Sedplugins.dll: A plugins DLL for Sedlauncher, I guess.
- Sedsvc.exe: Stands for 'Windows Remedation Service' (see image below). For further details see also my blog post Windows 10: What is REMSH.exe for? and this reddit thread.
The replaced files are responsible for ensuring that a user-blocked feature update to the next Windows 10 build (currently V1809) is still performed. See the KB article for more information.
Windows 10 reliability update KB4023057 (02/08/2018)
Windows 10: Update KB4023057 re-released
Windows 10 Updates KB4295110/KB4023057 (08/09/2018)
Windows 10: Update KB4023057
Windows 10: What is REMSH.exe for?
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