June 10, 2025—KB5060842 (OS Build 26100.4349)
Applies To
Windows Server 2025, all editionsRelease Date:
6/10/2025
Version:
OS Build 26100.4349
For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview, see the update history page for Windows Server 2025.
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Improvements
This security update includes quality improvements. The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.
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[Narrator] New! There are new functions for Narrator scan mode. You can use the comma ( , ) to jump to the start of an item, such as a large table, long list, or other content. Use the period ( . ) to jump to the end of an item. This is especially helpful when reading long emails, news articles, or wiki pages. To use these new functions, first turn on Narrator by pressing Windows logo key + Ctrl + Enter. Then, turn on scan mode by pressing Caps Lock + Spacebar. The scan mode is on by default on most web pages, such as news articles and wiki pages.
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[Daylight savings time (DST)] This update supports (DST) changes in Paraguay.
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[File Explorer]
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Fixed: Improves performance when it loads folders that have a large number of media files.
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Fixed: When you enter a URL in the address bar, it might not go to the location.
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Fixed: The address bar overlaps files when you use the F11 full-screen mode.
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Fixed: The context menu opens slowly when you right-click cloud files.
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Thumbnails for cloud files display more consistently in search results.
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[GDI+] Fixed: After you use GDI+ to shrink an image, the colors of the image might be wrong.
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[Get Help app] Fixed: It fails to open on Windows Server 2025.
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[Hyper-V] Fixed: Hyper-V Quick Create shows error "Could not load file or assembly Newtonsoft.Json".
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[Live captions] Fixed: If you disconnect an external monitor, the live captions window might not show.
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[Mouse] Fixed: In Settings > Accessibility > Mouse pointer and touch, you can choose a color for the mouse that is not the default. When you choose a color, it reverts to white after the User Account Control (UAC) dialog appears.
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[Open Secure Shell (OpenSSH) (known issue)] Fixed: The service fails to start, which stops SSH connections. There is no detailed logging, and you must run the sshd.exe process manually.
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[Remote Desktop]
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Fixed: There are display rendering issues when you connect to certain PCs.
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Fixed It stops responding.
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[Scanners] Fixed: Apps might not recognize a scanner is available when it is connected.
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[Start menu] Fixed: The colors are wrong when you open the account manager flyout menu. This occurs when you use a mixed dark and light custom mode in Settings > Personalization > Colors.
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[Task Manager] Fixed: It might identify a Hard Disk Drive (HDD) as a Solid State Drive (SSD).
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[Windows Hello] Fixed: This update addresses an issue that prevents users from signing in with self-signed certificates when using Windows Hello for Business with the Key Trust model.
If you installed earlier updates, your device downloads and installs only the new updates contained in this package.
For more information about security vulnerabilities, please refer to the Security Update Guide and the June 2025 Security Updates.
Windows Server 2025 servicing stack update (KB5059502) - 26100.4193
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
Symptoms
There are reports of blurry or unclear CJK (Chinese, Japanese, Korean) text when displayed at 96 DPI (100% scaling) in Chromium-based browsers such as Microsoft Edge and Google Chrome. The March 2025 Preview Update introduced Noto fonts in collaboration with Google, for CJK languages as fallbacks to improve text rendering when websites or apps don’t specify appropriate fonts. The issue is due to limited pixel density at 96 DPI, which can reduce the clarity and alignment of CJK characters. Increasing the display scaling improves clarity by enhancing text rendering.
Workaround
As a temporary workaround, increase your display scaling to 125% or 150% to improve text clarity. For more information, see Change your screen resolution and layout in Windows.
We are investigating this issue and will provide more information when it is available.
Symptoms
The DHCP Server service might intermittently stop responding after installing this security update. This issue affects IP renewal for clients.
Next steps
We are working on releasing a resolution in the coming days and will provide more information when it is available.
How to get this update
Before you install 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
To install this update, use one of the following Windows and Microsoft release channels.
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Available |
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This update downloads and installs automatically from Windows Update and Microsoft Update. |
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This update downloads and installs automatically from Windows Update for Business in accordance with configured policies. |
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Yes 1 |
Before you install this update To get the standalone package(s) for this update, go to the Microsoft Update Catalog website. This KB contains one or more MSU files that require installation in a specific order. Install this update Method 1: Install all MSU files together Download all MSU files for KB5060842 from Microsoft Update Catalog and place them in the same folder (for example, C:/Packages). Use Deployment Image Servicing and Management (DISM.exe) to install the target update. DISM will use the folder specified in PackagePath to discover and install one or more prerequisite MSU files as needed. Updating Windows PC To apply this update to a running Windows PC, run the following command from an elevated Command Prompt:
Or, run the following command from an elevated Windows PowerShell prompt:
Updating Windows Installation media To apply this update to Windows Installation media, see Update Windows installation media with Dynamic Update. To add this update to a mounted image, run the following command from an elevated Command Prompt:
Or, run the following command from an elevated Windows PowerShell prompt:
Method 2: Install each MSU file individually, in order Download and install each MSU file individually either using DISM or Windows Update Standalone Installer in the following order:
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1 This latest cumulative update includes updates for AI components. Even though the AI component updates are included in the update, the AI components are only applicable to Windows Copilot+ PCs and will not install on Windows PC or Windows Server.
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Available |
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This update will automatically sync with Windows Server Update Services (WSUS) if you configure Products and Classifications as follows: Product: Microsoft Server operating system-24H2 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 provided in this update, download the file information for cumulative update 5060842.
For a list of the files provided in the servicing stack update, download the file information for the SSU (KB5059502) - version 26100.4193.
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