UPDATE 1/29:
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Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.
Important: Windows updates do not install Microsoft Store application updates. If you are an enterprise user, see Microsoft Store apps - Configuration Manager. If you are a consumer user, see Get updates for apps and games in Microsoft Store.
Tip: Looking for this month's video? It is now in the Windows 11, version 24H2 article.
This security update includes quality improvements. Key changes include:
For more information about security vulnerabilities, please refer to the Security Update Guide website and the January 2025 Security 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
To install this update, use one of the following Windows and Microsoft release channels.
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 5050021.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5050113) - versions 22621.4740 and 22631.4740.
support.microsoft.com
Check Windows Updates
UUP Dump:
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ARM64 ISO download:
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KB5050092 Windows 11 Cumulative Update Preview build 22631.4830 (23H2) - Jan. 29
Microsoft Support: January 29, 2025 - KB5050092 (OS Builds 22621.4830 and 22631.4830) Preview 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, version 23H2, see its update...
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Microsoft Support:
January 14, 2025 - KB5050021 (OS Builds 22621.4751 and 22631.4751)
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, version 23H2, see its update history page.Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.
Important: Windows updates do not install Microsoft Store application updates. If you are an enterprise user, see Microsoft Store apps - Configuration Manager. If you are a consumer user, see Get updates for apps and games in Microsoft Store.
Tip: Looking for this month's video? It is now in the Windows 11, version 24H2 article.
Highlights
- This update addresses security issues for your Windows operating system.
Improvements
Note: To view the list of addressed issues, click or tap the OS name to expand the collapsible section.Windows 11, version 23H2
Important: Use EKB KB5027397 to update to Windows 11, version 23H2.This security update includes quality improvements. Key changes include:
- This build includes all the improvements in Windows 11, version 22H2.
- No additional issues are documented for this release.
Windows 11, version 22H2
This security update includes improvements that were a part of update KB5048685 (released December 10, 2024). Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.- [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
For more information about security vulnerabilities, please refer to the Security Update Guide website and the January 2025 Security Update.
Windows 11 servicing stack update (KB5050113) - 22621.4740 and 22631.4740
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. To learn more about SSUs, see Simplifying on-premises deployment of servicing stack updates.Known issues in this update
| Applies to | Symptom | Workaround |
|---|---|---|
| All users | Following the installation of the October 2024 security update, some customers report that the OpenSSH (Open Secure Shell) service fails to start, preventing SSH connections. The service fails with no detailed logging, and manual intervention is required to run the sshd.exe process. This issue is affecting both enterprise, IOT, and education customers, with a limited number of devices impacted. Microsoft is investigating whether consumer customers using Home or Pro editions of Windows are affected. | Customers can temporarily resolve the issue by updating permissions (ACLs) on the affected directories. Follow these steps:
|
| IT admins | Devices that have certain Citrix components installed might be unable to complete installation of the January 2025 Windows security update. This issue was observed on devices with Citrix Session Recording Agent (SRA) version 2411. The 2411 version of this application was released in December 2024. Affected devices might initially download and apply the January 2025 Windows security update correctly, such as via the Windows Update page in Settings. However, when restarting the device to complete the update installation, an error message with text similar to “Something didn’t go as planned. No need to worry – undoing changes” appears. The device will then revert to the Windows updates previously present on the device. This issue likely affects a limited number of organizations as version 2411 of the SRA application is a new version. Home users are not expected to be affected by this issue. | Citrix has documented this issue, including a workaround, which can be performed prior to installing the January 2025 Windows security update. For details, see Citrix’s documentation. Microsoft is working with Citrix to address this issue and will update this documentation once a resolution is available. |
How to get this update
Before you install this updateMicrosoft 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
To install this update, use one of the following Windows and Microsoft release channels.
| Available | Next Step |
|---|---|
| Yes | None. This update will be downloaded and installed automatically from Windows Update and Microsoft Update. |
| Yes | To get the standalone package for this update, go to the Microsoft Update Catalog website. |
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 5050021.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5050113) - versions 22621.4740 and 22631.4740.
Source:
January 14, 2025—KB5050021 (OS Builds 22621.4751 and 22631.4751) | Microsoft Support
January 14, 2025—KB5050021 (OS Builds 22621.4751 and 22631.4751)
support.microsoft.com
Check Windows Updates
UUP Dump:
64-bit ISO download:
Select language for Windows 11, version 23H2 (22631.4751) amd64
Select language for Windows 11, version 23H2 (22631.4751) amd64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
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ARM64 ISO download:
Select language for Windows 11, version 23H2 (22631.4751) arm64
Select language for Windows 11, version 23H2 (22631.4751) arm64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
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UUP Dump - Download Windows Insider ISO
UUP Dump is the most practical and easy way to get ISO images of any Insider Windows 10 or Windows 11 version, as soon as Microsoft has released a new build. UUP Dump creates a download configuration file according to your choices, downloads necessary files directly from Microsoft servers, and...
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