January 11, 2022 - KB5009566 [OS Build 22000.434]
For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11 [original release], see its update history page.
Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.
Highlights
- Updates a known issue that affects Japanese Input Method Editors [IME]. Text you enter might appear out of order or the text cursor might move unexpectedly in apps that use the multibyte character set [MBCS].
- Updates security for your Windows operating system.
Improvements and fixes
This security update includes quality improvements. Key changes include:
- Addresses a known issue that affects Japanese Input Method Editors [IME]. When you use a Japanese IME to enter text, the text might appear out of order or the text cursor might move unexpectedly in apps that use the multibyte character set [MBCS]. This issue affects the Microsoft Japanese IME and third-party Japanese IMEs.
If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.
For more information about the resolved security vulnerabilities, please refer to the Security Update Guide website and the January 2022 Security Updates.
Windows 11 servicing stack update - 22000.345
- 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
All users | After installing Windows 11, some image editing programs might not render colors correctly on certain high dynamic range [HDR] displays. This is frequently observed with white colors, which could display in bright yellow or other colors. This issue occurs when certain color-rendering Win32 APIs return unexpected information or errors under specific conditions. Not all color profile management programs are affected, and color profile options available in the Windows 11 Settings page, including Microsoft Color Control Panel, are expected to function correctly. | We are working on a resolution and estimate a solution will be available in late January. |
IT admins | After installing this update, IP Security [IPSEC] connections that contain a Vendor ID might fail. VPN connections using Layer 2 Tunneling Protocol [L2TP] or IP security Internet Key Exchange [IPSEC IKE] might also be affected. | To mitigate the issue for some VPNs, you can disable Vendor ID within the server-side settings. Note Not all VPN servers have the option to disable Vendor ID from being used. We are presently investigating and will provide an update in an upcoming release. |
How to get this update
Before installing this update
Microsoft 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: Windows 11 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 5009566.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 22000.345.