What’s New in the May 2025 Windows Patch Tuesday? Discover Critical Security Fixes and Surprising Issues

Are You Protected? Must-Know Highlights from Windows 10/11’s May 2025 Patchday Updates

Microsoft’s Patch Tuesday on May 13, 2025, delivered crucial cumulative updates for supported versions of Windows 10 and Windows 11. These updates address security vulnerabilities, improve system reliability, and resolve persistent issues-helping users and organizations maintain a secure and stable computing environment.

Key Highlights of the May 2025 Patchday

• Security enhancements across all supported Windows 10 and 11 versions
• Quality improvements for system stability and compatibility
• Specific fixes for Secure Boot, Linux detection, and Windows Update errors
• Updates are delivered automatically via Windows Update, with manual options available for IT admins

Windows 11 Updates

Update KB5058411 (Windows 11 24H2)

• Delivers security patches and quality improvements, focusing on internal OS functions.
• Addresses hardware-related issues, including microphone and eye controller fixes.
• Requires prior installation of CheckPoint update KB5043080 (from September 2024) to proceed.
• Integrated with the latest Servicing Stack Update (SSU).
• Distributed automatically via Windows Update, Microsoft Update Catalog, WSUS, and WUfB.
• Known issues and troubleshooting steps are detailed in the official support article.

Update KB5058405 (Windows 11 22H2–23H2)

• Includes essential security and quality updates.
• Notable fixes:
  • Secure Boot Advanced Targeting (SBAT): Improved detection of Linux systems via EFI.
  • Windows Update Reliability: Resolves issues preventing upgrades to Windows 11 24H2 through WSUS, including error code 0x80240069.
• Automatic deployment, with manual installation options for IT environments.
• Windows 11 22H2 Home and Pro have reached end of support; only Enterprise and Education editions continue to receive updates.

Windows 10 Updates

Update KB5058379 (Windows 10 21H2–22H2)

• Delivers security fixes and servicing stack improvements.
• SBAT and Linux EFI Enhancements: Improved detection for Linux systems.
• Only Enterprise, Education, and IoT editions of 21H2 remain supported.
• Be aware of installation requirements and known issues, especially in Citrix environments.

Update KB5058392 (Windows 10 Enterprise 2019 LTSC)

• Applies to Windows 10 v1809 (Enterprise LTSC and IoT Enterprise LTSC).
• Security improvements include:
  • Kernel Vulnerable Driver Blocklist: Expanded to block drivers exploited in BYOVD attacks.
  • Graphics Fix: Resolves blue screen errors linked to GDI updates with certain fonts.
  • SBAT and Linux EFI: Enhanced Linux detection.
• Automatic and manual installation options available.
• Installation prerequisites and known issues are documented in the support article.

Updates for Windows 10 1507 and 1607 (Enterprise LTSC)

• KB5058383 (1607) and KB5058387 (1507) address security vulnerabilities and enhance Secure Boot and Linux EFI detection.
• Only available for Enterprise LTSC and Windows Server 2016 (1607) or RTM (1507).
• Manual installations require the latest SSU.
• Check support articles for installation guidance and known issues.

Installation and Support Notes

• All updates are delivered automatically via Windows Update, but can also be downloaded from the Microsoft Update Catalog or deployed through WSUS and WUfB.
• Always review installation prerequisites, such as required SSUs or previous updates, to avoid errors.
• Support articles provide up-to-date information on known problems and recommended solutions.

Why These Updates Matter

• Enhanced Security: Critical vulnerabilities are patched, reducing exposure to malware and cyberattacks.
• System Stability: Quality improvements address persistent bugs and compatibility issues.
• Regulatory Compliance: Staying updated helps organizations meet security and compliance requirements.

Action Steps for Users and IT Professionals

1. Verify your Windows version and edition to ensure eligibility for updates.
2. Install prerequisite updates (such as SSUs or specific KBs) before applying the latest cumulative update.
3. Use Windows Update for automatic installation, or manually download from the Microsoft Update Catalog if needed.
4. Review official Microsoft support articles for known issues, especially in enterprise environments.
5. For unsupported versions, consider upgrading to a supported release to maintain security.

Stay proactive-install the May 2025 Patchday updates to protect your Windows devices from emerging threats and enjoy a more reliable computing experience.