Windows 11’s January 2026 Update has begun rolling out, marking a significant update for versions 25H2, 24H2, and 23H2, along with Windows Server 2025 and 2023. While this month’s security update focuses on fixes rather than new features, it brings a host of security enhancements.
The January 2026 Patch Tuesday includes over 114 security fixes and addresses three zero-day vulnerabilities, contributing to overall system security. An overview of the notable vulnerabilities fixed includes critical remote code execution and privilege elevation issues.
Details of January 2026 Patch Updates
| Windows Version | OS Build | Release Date |
|---|---|---|
| Windows Server 2025 | Build 26100.32230 | January 13, 2025 |
| Windows Server 2023 | Build 25398.2092 | January 13, 2026 |
| Windows 11 25H2 | Build 26200.7623 | January 13, 2026 |
| Windows 11 24H2 | Build 26100.7623 | January 13, 2026 |
| Windows 11 23H2 | Build 22631.6491 | January 13, 2026 |
| Windows 10 ESU | Build 19045.6809 | January 13, 2026 |
To update, users can navigate to Settings > Windows Update and check for updates. For manual installation, the Microsoft Update Catalog offers offline installers using the relevant KB numbers.
Key Updates in Windows Server
The update for Windows Server includes changes in driver management, with older modem drivers being removed. New certificates have been introduced to enhance Secure Boot protocol reliability.
Updates in Windows 11
The Windows 11 update further introduces new features like a revitalized Start menu with a categories layout, which simplifies access to applications. It also offers a new ‘Advanced Settings’ page, previously labeled ‘For Developers’, allowing users to engage advanced features within File Explorer.
Other notable enhancements include:
- Expanded dark mode functionality in File Explorer.
- A new recommended section for File Explorer’s user interface.
- Improvements in keyboard backlighting and stylus feedback.
Known Issues
One known issue in both Windows 10 and 11 involves Remote Desktop connections that may fail, primarily affecting Azure Virtual Desktop and Windows 365. Microsoft is working on a solution for this problem.
In summary, the January 2026 update hones in on security improvements while also rolling out some user interface changes, emphasizing Microsoft’s commitment to enhancing the user experience and system protection.
For more detailed insight on the update, visit:
Stay updated by regularly checking Windows updates and patch notes for ongoing improvements and security fixes.