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Windows 10 22H2 Windows 10 22H2 Optional preview
Preview

KB5062649

KB5062649: Cumulative update for Windows 10, version 22H2, July 2025. Core file system hangs and input-method failures addressed

In short

Addresses rare stability problems that could leave some PCs unresponsive, along with several input-method and emoji-search failures. It also adds a Secure Boot protection deployment option.

Does it affect you? Applies to: Devices running Windows 10, version 22H2. This preview is available for x64, Arm64, and x86 devices.

Build
19045.6159
Restart
Required

Microsoft publishes separate notes for this KB for Windows 11.

What changes

Fixes 5 changes

Extended Security Updates

For: Windows 10 ESU users

  • The issue that could make the Extended Security Updates enrollment wizard close after you select “Enroll now” is addressed.1
    The page attributes the wizard problem to incomplete app registration.

Core File Systems

  • Addresses rare stability problems that could leave some devices unresponsive in specific situations.2
    The issue was observed after installing the May 2025 security update and subsequent updates.

Input

Verified in package 3 items
  • Users can select words again with the Microsoft Changjie Input Method after a recent update.3
  • Emoji searches in the emoji panel no longer always return no results.4
    Addresses the search failure that began after a recent update.
  • Phonetic keyboards, including the Hindi Phonetic Input and Marathi Phonetic keyboards, work correctly again after a recent update.5

Improvements 2 changes

Mobile Operator Profiles

Verified in package

For: Devices using mobile operator profiles

  • Country and operator settings profiles are updated.6
    Updates Country and Operator Settings Asset (COSA) profiles.

Servicing stack

  • The component that installs Windows updates receives quality improvements intended to make the update process more reliable.7
    The combined servicing stack update is KB5063261, build 19045.6151.

New feature 1 change

Secure Boot

Verified in package
  • Adds an option for deploying a new Secure Boot protection.8
    Adds the ability to deploy SKUSiPolicy VBS Anti-rollback protections through the Secure Boot AvailableUpdates registry key.

Technical details

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

Data sheet

Released
2025-07-22
Classification
Updates
Type
Cumulative update
Restart
Required
Replaces
KB5062554, KB5061087, KB5063159, KB5058481
+17 earlier KB5061979, KB5061768, KB5055612, KB5053643, KB5052077, KB5050081, KB5046714, KB5045594, KB5043131, KB5041582, KB5040525, KB5039299, KB5037849, KB5036979, KB5035941, KB5034843, KB5034203
Replaced by
KB5063709
VersionBuildChannel
22H2 19045.6159 General availability

Security

No vulnerabilities are listed for this update.

Updated components

1,266 files changed since the previous update for the same versions.

Top changed componentsFiles
Graphics and display32
Settings19
Networking18
File Explorer and shell15
Security and sign-in15
Hyper-V and virtualization9
Search9
Storage and file systems9
Emoji and input7
Kernel7
Remote Desktop4
Secure Boot4

Verified in package: changed files confirm Input, Mobile Operator Profiles, Secure Boot.

Sources

Updated
Cited passages from Microsoft's official notes (8)
  1. 1. Some users experienced a problem where clicking “Enroll now” caused the wizard window to open, begin loading, and then close unexpectedly. support.microsoft.com
  2. 2. Fixed: An issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios. support.microsoft.com
  3. 3. Users were unable to select words after a recent update. support.microsoft.com
  4. 4. After a recent update, the search always returns no results. support.microsoft.com
  5. 5. Fixed: An issue in which phonetic input methods, including the Hindi Phonetic Input keyboard and Marathi Phonetic keyboard do not work correctly after a recent update. support.microsoft.com
  6. 6. Updated: Country and Operator Settings Asset (COSA) profiles. support.microsoft.com
  7. 7. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. support.microsoft.com
  8. 8. Adds the ability to deploy SKUSiPolicy VBS Anti-rollback protections through the Secure Boot AvailableUpdates registry key. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 8 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