Driver Blocklist
The latest Driver Blocklist coverage — news, analysis, and updates from the WindowsNews.AI desk.
April 2026 Update KB5083769 Blocks psmounterex.sys, Crippling Windows 11 VSS Backups
Microsoft’s latest cumulative update for Windows 11 24H2 and 25H2, KB5083769, released on April 14, 2026, is triggering widespread backup failures by blocking the kernel driver psmounterex.sys. The...
Microsoft's BYOVD Defense: How the Vulnerable Driver Blocklist Protects Windows Kernel
Microsoft's Windows operating system represents one of the most complex security environments in computing, with multiple layers of protection working in concert to defend against increasingly...
CVE-2025-53804: Windows Kernel Vulnerability Exposes Sensitive Data—Patch Now and Harden Defenses
Microsoft has confirmed a new information disclosure vulnerability in the Windows kernel, tracked as CVE-2025-53804, that allows a local attacker to extract sensitive data from protected kernel...
Windows 11 Driver Signing: The Best Security Feature Is Also the Most Anti-Consumer
No single feature in Windows 11 better encapsulates the eternal tension between security and user autonomy than the mandatory driver signature enforcement. It is simultaneously the operating...
Silver Fox APT Weaponizes Microsoft-Signed Driver to Kill EDR, Drop ValleyRAT
A new in-the-wild campaign by the Silver Fox APT is rubbing salt into the persistent wound of Windows driver security: attackers are using a Microsoft-signed but functionally vulnerable kernel driver...
Windows 11 Build 26100: A Deep Dive into Features, Fixes, and User Experiences
The Windows 11 Build 26100 series, encompassing various sub-builds like 26100.4762 (KB5062660), represents a significant step in the ongoing evolution of Windows 11. While not introducing radical...
Windows 11 KB5060999 Update: Security Enhancements and New Features Explained
Microsoft's latest Windows 11 KB5060999 update, released on June 10, 2025, brings significant security improvements and feature enhancements for Enterprise and Education users. This cumulative update...
Microsoft's May 2025 Windows Security Updates: Addressing Critical Vulnerabilities and Enhancing System Security
Overview In May 2025, Microsoft released a series of security updates for Windows 10 and Windows 11, addressing critical vulnerabilities and reinforcing system defenses. These updates are part of...
Windows 11 KB5055629 Update: New Features, Fixes, and Risks for Users
For Windows enthusiasts and IT professionals alike, the release of the Windows 11 KB5055629 update marks another step forward in Microsoft’s ongoing mission to refine its flagship operating system....
Windows 10 April 2025 Update Fixes WSL2 GPU Bug, Blocks Malicious Drivers
Introduction On April 22, 2025, Microsoft released the KB5055612 update for Windows 10 version 22H2, marking a significant step in enhancing the operating system's stability, security, and...
KB5055612 fixes WSL2 GPU flaw and blocks BYOVD driver exploits in Windows 10
Overview of Windows 10 Update 19045.5794 (KB5055612) Microsoft has rolled out the Windows 10 Release Preview build 19045.5794, identified as KB5055612, delivering important fixes that focus on...