Windows Security
The latest Windows Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
January 2026 Windows Update CVE-2026-20804 Ends Automated Credential Filling
Microsoft's January 2026 security update has fundamentally changed how Windows handles credential input, blocking automatic credential filling in Windows sign-in dialogs through a patch addressing...
Windows Credential UI Hardened: How Microsoft's 2026 Security Update Blocks Remote Input
In January 2026, Microsoft implemented a significant but understated security hardening measure within Windows credential dialogs that fundamentally changes how remote support tools interact with...
Windows Antivirus 2024: Why Layered Security Beats Single Solutions
The antivirus landscape has undergone a fundamental transformation in recent years, moving from a simple binary choice between security suites to a complex ecosystem of layered protection strategies....
Windows 11 Notepad Markdown bug CVE-2026-20841 enables code execution via crafted links
Microsoft has urgently patched a high-severity remote code execution vulnerability in Windows 11's modern Notepad application, designated CVE-2026-20841, that could allow attackers to execute...
Secure Boot Certificate Refresh: Why Windows Users Must Update 2011 Roots Before 2026
Microsoft has issued a critical security alert that affects virtually every Windows PC manufactured in the last decade: the original Secure Boot certificates that have underpinned platform integrity...
Avira Antivirus 2025 Review: Lab-Tested Excellence Meets Real-World Annoyances
Avira Antivirus has re-emerged as a serious contender in the Windows security landscape for 2025, earning top marks from independent testing laboratories while simultaneously frustrating users with...
Notepad Markdown Flaw CVE-2026-20841 Gets Critical Patch, Open .md Files Triggers RCE
Microsoft's February 2026 Patch Tuesday has addressed a critical security vulnerability in the modern Notepad application that could allow attackers to weaponize simple Markdown files for remote code...
Windows Baseline Security Mode & UTC: Microsoft's 'Secure by Default' Revolution
Microsoft is fundamentally rethinking Windows security with a bold new architecture that could transform how millions of users interact with their operating systems. At the heart of this...
February 2026 Patch Tuesday Preps Windows 11 for Secure Boot Certificate Expiry
Microsoft's February 2026 cumulative updates for Windows 11 delivered more than routine security patches—they continued a critical, staged rollout that will refresh the operating system's Secure...
CISA Adds 6 Critical Microsoft Windows CVEs to KEV Catalog: Patch Now
The Cybersecurity and Infrastructure Security Agency (CISA) has once again expanded its Known Exploited Vulnerabilities (KEV) catalog, this time adding six critical Microsoft Windows vulnerabilities...
Windows Reboot 2026: Microsoft's Bold Shift to Baseline Security and Consent UX Explained
Microsoft is preparing for a fundamental reorientation of its Windows operating system with the upcoming "Windows Reboot 2026" initiative, marking what appears to be the company's most significant...
CVE-2026-20846: Critical GDI+ DoS Vulnerability - Patch and Hardening Guide
Microsoft has disclosed a significant denial-of-service vulnerability in its Graphics Component (GDI+) that could allow attackers to crash Windows systems by exploiting malformed graphics processing....