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January Patch Tuesday. What’s New for Windows 11 and 10!

January 2024's Patch Tuesday has brought significant updates for the Windows 11 and Windows 10 operating systems. These updates, crucial for system security and performance, include fixes for critical security vulnerabilities and general improvements.

Patch Tuesday

Table of Contents

Patch Tuesday: Updates for Windows 11

For Windows 11, the KB5034123 update has been released for 23H2 and 22H2 versions, bringing the builds to 22631.3007 and 22621.3007 respectively. This update, which we also talked about in a dedicated article, includes major security fixes and various bug fixes, including:

  • New Features in Lock Screen: an interactive and dynamic weather experience has been introduced in the lock screen. Users can now access detailed weather information simply by moving the pointer or clicking on the weather tab.
  • Fixes for Spell Checker: issues related to the spell checker have been resolved.
  • Enhanced Security: two critical vulnerabilities have been corrected, one related to the Kerberos authentication protocol and the other to the Hyper-V hypervisor. In total, 49 security flaws have been resolved, 12 of which allowed the remote execution of malicious code.
  • Vulnerability Fixes in Microsoft Office: a specific issue in Microsoft Office (CVE-2024-20677) that allowed the execution of arbitrary code through malicious 3D FBX files has been addressed.

Despite numerous advantages, some known issues persist, such as a bug affecting icon display in multi-monitor setups with Windows Copilot and minor graphic issues.

Windows 10 Patch Tuesday Updates

For Windows 10, the updates have been identified with the code KB5034122 (then followed by the Windows 10 KB5034441 update) and concern versions 20H2, 21H2, and 22H2, as well as versions 1809, 1607, and 1507 in the Long-Term Servicing Channel (LTSC). The main fixes and known issues include:

  • General Fixes: some security issues and bugs have been resolved.
  • Shared Issues with Windows 11: Windows 10 also presents issues in Copilot display on multi-monitor setups.

Users can manually download these updates from the Microsoft Update Catalog, or wait for the automatic rollout via Windows Update. It is strongly recommended to install these critical updates to protect your devices and keep the operating system secure and performing.


January 2024’s Patch Tuesday proves to be a significant step for Microsoft in its continuous commitment to the security and efficiency of its operating systems, Windows 11 and Windows 10. These updates, while bringing some exciting novelties and significant improvements, also underscore the importance of staying vigilant and updated in a rapidly changing technological environment.

If you’re a Windows user, promptly installing these updates is not just a matter of accessing new features but is crucial for ensuring the security of your devices against critical vulnerabilities. Microsoft, with its commitment to releasing regular and comprehensive updates, demonstrates constant attention to protecting and enhancing the user experience.

We remind you that, despite some minor issues still to be resolved, updates like these are essential to keep systems secure and reliable. Therefore, we advise you to carefully follow the provided instructions for installing the updates and to stay informed about future releases and fixes for any known issues.

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