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MC1172445: The October 2025 Windows Security Update Is Now Available

By: Author Alex Lim

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Categories Microsoft

Home » Microsoft » MC1172445: The October 2025 Windows Security Update Is Now Available

Summary

  • The October 2025 security update is available for all supported Windows versions; installation is recommended.
  • This update addresses various security issues and bugs, including print preview responsiveness and Windows Hello setup errors.
  • It includes improvements from a previous update (KB5065789), enhancing system security.
  • Admins should be aware of the potential impact on user workflows and system configurations.
  • This change falls under the ‘StayInformed’ category, indicating it’s an update on new features or improvements.

Admin Impact: High
User Impact: Medium
Release Start: 01 Oct 2025
Release End: 31 Oct 2025
Services: Windows
Category: Stay informed
Tags: Admin Action

History

10/14/2025: Item Added to Message Center

Microsoft Message

The October 2025 security update is now available for all supported versions of Windows. We recommend that you install these updates promptly. For more information about the contents of this update, see the release notes, which are easily accessible from the Windows 11 and Windows 10 update history pages. To learn more about the different types of monthly quality updates, see Windows monthly updates explained.

Highlights for the Windows 11, version 25H2 update

  • This security update includes improvements that were a part of update KB5065789 (released September 29, 2025).
  • This update addresses security issues for your Windows operating system.
  • This update addresses an issue that caused the print preview screen to stop responding in Chromium-based browsers.
  • This update addresses an issue that occurred when users signed in to a Windows device using only a Gamepad at the lock screen. If no other input methods—such as touch or fingerprint—were used during sign-in, apps and games did not respond to input afterward. ​​​​​​​
  • This update addresses an issue that affects the setup process for Windows Hello face recognition when using USB infrared camera modules. Users were unable to complete setup due to a persistent error message, such as “Make sure your face is centered in the frame.” ​​​​​​​

Short on time? Watch our Windows 11 release notes video for this month’s tips.

For instructions on how to install this update, see the KB for your operating system listed below: