PC Tech Worx

Microsoft released the mandatory March 2026 Patch Tuesday updates on March 10, 2026, to address critical security vulnerabilities and system reliability. These updates are cumulative and include patches for 79 flaws, including two publicly disclosed zero-day vulnerabilities.
Update Overview
KB5079473: Applies to Windows 11 versions 25H2 and 24H2, advancing the OS to builds 26200.8037 and 26100.8037.
KB5078883: Applies to Windows 11 version 23H2, advancing the OS to build 22631.6783.
Microsoft Support
Microsoft Support
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Key Fixes and Features
Secure Boot Transition: Both updates begin the process of replacing Secure Boot certificates that are set to expire in June 2026. This is a critical preemptive fix to ensure devices remain trusted and can continue to receive boot security updates.
New Native Features (KB5079473): Includes a built-in network speed tester in the Taskbar, native Sysmon support, and enhanced camera pan/tilt controls.
System Stability: Fixes a reliability issue in File Explorer when searching across multiple drives and addresses a Windows Defender Application Control (WDAC) bug that incorrectly blocked COM objects.
Enterprise Improvements: Adds a trusted catalog file warning to the Windows System Image Manager (WSIM) and updates several AI components to version 1.2602.1451.0.
Installation
These updates are mandatory and will typically download and install automatically via Windows Update. You can also manually trigger the update by navigating to Settings > Windows Update > Check for updates or by downloading them from the Microsoft Update Catalog.

Windows 11 users blame Microsoft for forced updates | Windows Central

Windows 11 keeps forcing unwanted updates with "too many coincidences" Frustrated by surprise Windows 11 updates? You’re not alone

https://www.makeuseof.com/i-cleared-my-windows-11-cache-and-the-difference-was-immediate/

I cleared my Windows 11 cache and the difference was immediate Cleaning up what you cannot see to feel the speed.