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Home » Windows 10 KB5078885: What You Need to Know in 2026

Windows 10 KB5078885: What You Need to Know in 2026

Windows 10 KB5073724

Microsoft has released the latest security update for Windows 10 users enrolled in the Extended Security Updates (ESU) program. The Windows 10 KB5078885 update addresses March 2026 Patch Tuesday vulnerabilities, including 2 zero-days and an issue that prevents some devices from shutting down. Installing today’s update brings Windows 10 22H2 to build 19045.7058 and Windows 10 Enterprise LTSC 2021 to build 19044.7058. This update also includes fixes for File History, Windows System Image Manager, graphics, and certificate updates to Windows 10 Enterprise LTSC and ESU systems. This update is essential for organizations and individuals still running Windows 10 Enterprise LTSC or ESU versions.

 This update is only available to users enrolled in the ESU program or running Windows 10 Enterprise LTSC.

What’s New in KB5078885?

The March 10, 2026, Patch Tuesday update brings several important changes to Windows 10 systems. It addresses GPU stability issues that could cause the Start menu, taskbar, and other UI elements to freeze or become unresponsive. Additionally, the update expands automatic delivery of updated Secure Boot certificates to eligible devices, preparing systems for the expiration of older 2011 certificates in June 2026. This helps prevent boot-level attacks like rootkits.

Fixes issues in the Control Panel’s File History feature, allowing backup of files with names containing certain Chinese characters and Private Use Area Unicode characters. Windows System Image Manager now displays a warning dialog prompting users to confirm that catalog files come from trusted sources. The update also resolves a shutdown and hibernation issue affecting devices with System Guard Secure Launch enabled, and includes Chinese font updates to meet GB18030-2022A compliance standards.

Key Security Fixes in the March 2026 patch update

Microsoft has patched 84 vulnerabilities in the KB5078885 update, including two zero-day flaws that were actively exploited. The most critical vulnerabilities include:

  • Two Zero-Day Flaws: Publicly disclosed vulnerabilities include a .NET denial-of-service (CVE-2026-26127) and an elevation of privilege in SQL Server (CVE-2026-21262).
  • Critical Vulnerabilities: Eight vulnerabilities are rated critical, with the highest-rated (CVSS 9.8) being a remote code execution flaw in the Microsoft Devices Pricing Program (CVE-2026-21536), which Microsoft has already addressed.
  • Office Vulnerabilities: Two critical remote code execution flaws (CVE-2026-26110, CVE-2026-26113) in Microsoft Office allow unauthenticated attackers to execute code, notes a CrowdStrike article.

How to Install Windows 10 KB5078885

You can install the KB5078885 update via Windows Update settings. To do this,

  • Right-click on the start menu, select settings,
  • Go to Update & Security, then Windows Update,
  • Now, click the Check for updates button, and you will see the 2026-03 Cumulative Update for Windows 10 Version 22H2 for x86-based Systems (KB5078885) has started downloading.
windows 10 KB5078885 Download
  • Once done, restart your PC to apply the updates.

Alternatively, you can download the offline installer from the Microsoft Update Catalog and manually install the update.

  • Visit the Microsoft Update Catalog.
  • Search for “KB5078885” and select the appropriate version (e.g., 32-bit, 64-bit, or ARM64) based on your system.
  • Download the .msu file, double-click it to run the installer, and follow the prompts. Restart your device to complete the process.

And if you are looking for the Windows 10 version 22H2 ISO image, you can get it from here.

Windows 10 KB5078885 update Direct Download Links: 64-bit and 32-bit (x86).

The link above opens the Microsoft Update Catalog, a public library of previously released Windows Updates. You can click on the ‘Download’ button next to the version of Windows you’ve installed and begin the download by clicking on .msu link, which appears in the next pop-up.

Microsoft strongly recommends upgrading to Windows 11 for continued security and support.

Why This Update Matters

The KB5078885 update is crucial for maintaining the security of Windows 10 systems. Removing legacy drivers and patching zero-day vulnerabilities helps protect against a wide range of threats. The update also ensures that Secure Boot protections remain effective, preventing attackers from bypassing boot-level security measures.

Robeg

I am Robeg founder of this blog. My qualification. completed Bachelor of Arts (BA) and Microsoft Certified Professional (MCP). With a strong background in computer applications love write articles on Microsoft Windows (11, 10, etc.) Cybersecurity, WordPress and more.

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