October 11, 2022—KB5018421 (OS Build 20348.1129)
Improvements
This security update includes improvements that were a part of update KB5017381 (released September 20, 2022). Key changes in this release include:
- We address a known issue that might affect file copies that use Group Policy Preferences. They might fail or might create empty shortcuts or files that have 0 (zero) bytes.
If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.
For more information about security vulnerabilities, please refer to the Security Update Guide and the October 2022 Security Updates.
Windows 10 servicing stack update – 20348.1066
This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.
Known issues in this update
Microsoft is not currently aware of any issues with this update.
How to get this update
Before installing this update
Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
Install this update
| Release Channel | Available | Next Step |
| Windows Update and Microsoft Update | Yes | None. This update will be downloaded and installed automatically from Windows Update. |
| Windows Update for Business | Yes | None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies. |
| Microsoft Update Catalog | Yes | To get the standalone package for this update, go to the Microsoft Update Catalog website. |
| Windows Server Update Services (WSUS) | Yes | This update will automatically sync with WSUS if you configure Products and Classifications as follows:
Product: Microsoft Server operating system-21H2 Classification: Security Updates |
If you want to remove the LCU
To remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command: DISM /online /get-packages.
Running Windows Update Standalone Installer (wusa.exe) with the /uninstall switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.
File Information
For a list of the files that are provided in this update, download the file information for cumulative update 5018421.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU – version 20348.1066.
Download links
MSU file from Microsoft Update Catalog
KB5018421 MSU for Windows Server 2022 22H2 64-bit (x64) – 309.57 MB
KB5018421 MSU for Windows Server 2022 21H2 64-bit (x64) – 309.57 MB
