May 28, 2025—KB5058481 (OS Build 19045.5917) Preview
Applies To
Windows 10 Home and Pro, version 22H2 Windows 10 Enterprise Multi-Session, version 22H2 Windows 10 Enterprise and Education, version 22H2 Windows 10 IoT Enterprise, version 22H2Release Date:
5/28/2025
Version:
OS Build 19045.5917
Support for Windows 10 will end in October 2025
After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11.
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 10, version 22H2, see its update history page.
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Note Experience seamless device migration with Windows Backup for Organizations, now available for a limited public preview. This feature ensures a smooth transition to Windows 11 for new or reimaged Microsoft Entra joined devices. To learn more, see Announcing Windows Backup for Organizations.
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Change date |
Change description |
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May 29, 2025 |
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Summary
This preview update includes quality improvements. Below is a summary of the key issues that this update addresses when you install this update. 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.
Highlights
[Calendar flyout]
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Brings back the clock view that displays seconds onto the calendar that was once removed. This feature is rolling out gradually. This means that users receive the updates at different times, and it might not be immediately available to all users.
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Enhances the Rich Calendar feature by extending the upcoming events period to 30 days.
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Adds description text for the Weather button in the Rich Calendar feature.
Improvements
Important: Use EKB KB5015684 to update to Windows 10, version 22H2.
[GDI/GDI+]
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Fixed: Some GB18030-2022 characters in plane 2 are not rendered.
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Fixed: Some GB18030 characters are rendered wider. Additionally, the sample paragraph is not rendered correctly.
[Mobile Operator Profiles]
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Updated: Country and Operator Settings Asset (COSA) profiles are updated.
[WinSaS]
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Fixed: An issue affecting the Windows Account Sync Consent system in European Economic Area markets, where secondary accounts were not acknowledged, leading to increased server load.
If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.
Servicing stack update (KB5059504) - 19045.5911
Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing updates.
This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. To learn more about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
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.
How to get this update
Before you install this update
Based on your installation scenario, choose one of the following:
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For offline OS image servicing:
If your image does not have the July 25, 2023 (KB5028244) or later LCU, you must install the special standalone October 13, 2023 SSU (KB5031539) before installing this update.
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For Windows Server Update Services (WSUS) deployment or when installing the standalone package from Microsoft Update Catalog:
If your devices do not have the May 11, 2021 (KB5003173) or later LCU, you must install the special standalone August 10, 2021 SSU (KB5005260) before installing this update.
Install this update
To install this update, use one of the following Windows and Microsoft release channels.
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Available |
Next Step |
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Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you will find the link to download and install the update. |
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Available |
Next Step |
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These changes will be included in the next security update to Windows Update for Business. |
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Available |
Next Step |
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To get the standalone package for this update, go to the Microsoft Update Catalog website. For information about how to download and install updates from the Update Catalog, see How to download updates that include drivers and hotfixes from the Windows Update Catalog. |
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Available |
Next Step |
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You can import this update into Windows Server Update Services (WSUS) manually. See the Microsoft Update Catalog for instructions. |
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
A list of the files that are included in this update are provided in a CSV (Comma delimited) (*.csv) file. The file can be opened in a text editor such as Notepad or in Microsoft Excel.
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