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Windows 10 22H2 Windows 10 22H2 Optional preview
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KB5053643

KB5053643: Cumulative update for Windows 10, version 22H2, March 2025. Noto fonts add CJK support but can blur browser text

In short

Chinese, Japanese, and Korean text gains Noto font support, but can look blurry in Chromium browsers at 100% scaling. The calendar's seconds-view rollout is paused.

Does it affect you? Applies to: Devices running Windows 10, version 22H2, on x64, Arm64, or x86 systems.

Build
19045.5679
Restart
Required

Microsoft publishes separate notes for this KB for Windows 11.

What changes

Improvements 6 changes

Calendar flyout

Gradual rollout
  • The change that hides the seconds view in the calendar flyout is paused. Microsoft plans to bring the view back in a future update.1
    The gradual rollout of disabling the clock view that displays seconds is paused.

Mobile Operator Profiles

Verified in package

For: devices using mobile operator profiles

  • Country and mobile operator settings profiles are updated.2
    Updates Country and Operator Settings Asset (COSA) profiles.

Temporary files

  • System processes can store temporary files in a secure folder, reducing the risk of unauthorized access.3
    Enables system processes to store temporary files in C:\Windows\SystemTemp through the GetTempPath2 API or .NET's GetTempPath API.

Search on Taskbar

Verified in package 2 items
  • In the European Economic Area, web search providers are easier to find and results are combined in the All scope.4
    Updates Windows Search in the EEA with increased discoverability for web search providers and merged results in the All scope.
  • In the European Economic Area, the Bing app's web search results open in the default browser.5
    The Microsoft Bing app's web search provider in Windows Search now opens results with the default browser in the EEA.

Servicing stack

For: devices installing Windows updates

  • The component that installs Windows updates gets quality improvements.6
    The combined package includes servicing stack update KB5054682, build 19045.5676.

Fixes 3 changes

Printers

Verified in package
  • Some USB-connected printers stop printing incorrect or unwanted text.7
    Addresses unexpected text output from USB-connected dual-mode printers that support US Print and IPP Over USB.

Remote Desktop

Verified in package

For: Remote Desktop users

  • Some Get Help troubleshooters can run in a Remote Desktop session again.8
    Addresses certain Get-Help troubleshooters that might not run in a Remote Desktop session.

Thumbnails

  • File Explorer thumbnails are less likely to crash and show as white pages.9
    Addresses crashes that cause thumbnails in File Explorer to appear as white pages.

New feature 1 change

Noto Fonts

  • Web browsing gains modern font support for Chinese, Japanese, and Korean text.10
    Introduces the Noto font family as support for Chinese, Japanese, and Korean languages.

Known issues

  1. Open Affects: Organizations and IT administrators

    Citrix

    Devices with Citrix Session Recording Agent version 2411 might fail to install the January 2025 security update and undo changes when restarting. Home users are not expected to be affected.11

    How to apply the workaround Workaround

    Install Citrix Session Recording Agent version 2503 or newer.11

  2. Open Affects: Everyone

    Noto fonts issue

    Chinese, Japanese, and Korean text might look blurry in Chromium browsers at 100% display scaling.12

    How to apply the workaround Workaround

    Increase display scaling to improve text clarity.12

  3. Open Affects: Everyone

    System Guard Runtime Monitor Broker service

    Event Viewer might report a System Guard Runtime Monitor Broker service error. It has no effect on performance, features, or security, and KB5055612 addresses it.13

    Workaround status No workaround yet

    Microsoft has not published a manual workaround for this issue yet. Monitor release health until a resolving update is available.

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2025-03-25
Classification
Updates
Type
Cumulative update
Restart
Required
Replaces
KB5052077, KB5050081, KB5046714, KB5045594
+9 earlier KB5043131, KB5041582, KB5040525, KB5039299, KB5037849, KB5036979, KB5035941, KB5034843, KB5034203
Replaced by
KB5055612
VersionBuildChannel
22H2 19045.5679 General availability

Security

No vulnerabilities are listed for this update.

Updated components

3,949 files changed since the previous update for the same versions.

Top changed componentsFiles
Settings41
Graphics and display29
File Explorer and shell27
Printing21
Remote Desktop19
Security and sign-in17
Kernel15
Networking14
Search13
Secure Boot13
Storage and file systems11
Windows Update11

Verified in package: changed files confirm Mobile Operator Profiles, Search on Taskbar, Printers, Remote Desktop.

Sources

Updated
Cited passages from Microsoft's official notes (13)
  1. 1. Based on your feedback, we’ve paused these changes’ gradual rollout and will bring back this clock view in a future update. support.microsoft.com
  2. 2. Updated: Country and Operator Settings Asset (COSA) profiles are updated. support.microsoft.com
  3. 3. This update enables system processes to store temporary files in a secure directory "C:\Windows\SystemTemp" via either calling GetTempPath2 API or using .NET's GetTempPath API, thereby reducing the risk of unauthorized access. support.microsoft.com
  4. 4. In the European Economic Area (EEA), Windows Search has been updated with improved support for web search providers including increased discoverability and merged results in the All scope. support.microsoft.com
  5. 5. In the EEA, the Microsoft Bing app's web search provider in Windows Search now opens search results with the default browser. support.microsoft.com
  6. 6. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. support.microsoft.com
  7. 7. Fixed: USB connected dual-mode printers that support both US Print and IPP Over USB protocols, might unexpectedly output incorrect or unwanted text. support.microsoft.com
  8. 8. Fixed: Certain Get-Help troubleshooters might not run in a Remote Desktop session. support.microsoft.com
  9. 9. Fixed: Thumbnails in File Explorer may crash resulting in white pages appearing instead of the actual thumbnail. support.microsoft.com
  10. 10. This update enhances text quality and customer experience in web browsing for Chinese, Japanese, and Korean languages by introducing the Noto font family. support.microsoft.com
  11. 11. Devices that have certain Citrix components installed might be unable to complete installation of the January 2025 Windows security update. support.microsoft.com
  12. 12. 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. support.microsoft.com
  13. 13. This error can be found under Windows Logs > System as Event 7023, with text similar to ‘The System Guard Runtime Monitor Broker service terminated with the following error: %%3489660935’. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 13 quoted passages · compared with Microsoft's page on Oct 20, 2026
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 5/5, clarity 4/5, completeness 5/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake