Windows Defender
The latest Windows Defender coverage — news, analysis, and updates from the WindowsNews.AI desk.
ZDNET’s Windows Security Wake-Up Call: 5 Optional Protections You Should Turn On Now
{ "title": "ZDNET’s Windows Security Wake-Up Call: 5 Optional Protections You Should Turn On Now", "content": "ZDNET recently published a stark reminder: the most hardened Windows PC isn't the...
Windows Defender Exploit: RedSun 0day Uses Race Condition for System32 Privilege Escalation
A newly disclosed Windows Defender vulnerability allows attackers to achieve local privilege escalation by exploiting a race condition in the antivirus engine's file handling. Dubbed "RedSun" by...
Microsoft Updates Defender Package for Windows Installation Media to Close Security Gap
Microsoft has updated the Defender antimalware platform package for Windows installation images, addressing a critical security vulnerability that exists during the first boot of fresh installations....
Speed Up Windows: How to Tune Your Antivirus Without Sacrificing Security
If your PC feels sluggish, the program you installed to keep it safe could be doing more harm than good. This paradox of security software—designed to protect but often burdening system...
KB4052623 Defender Update Fixes Critical Scan Bug, Introduces New Enterprise Features
Microsoft has released KB4052623, a crucial platform update for Microsoft Defender Antivirus that addresses a significant security vulnerability while simultaneously rolling out new...
2026 Windows Security: Unprotected PCs exploited in minutes—configure exclusions instead
As we move deeper into 2026, the question of whether to disable Windows Security features continues to surface among advanced users, IT administrators, and gamers seeking maximum performance. While...
MISO & Microsoft Cloud AI: Revolutionizing Grid Planning & Real-Time Operations
The Midcontinent Independent System Operator (MISO), one of North America's largest regional transmission organizations, has embarked on a transformative partnership with Microsoft to build a...
Windows Defender Targeted Scans: Complete Guide to Custom & Scripted Folder Security
Windows Security, powered by Microsoft Defender, offers sophisticated targeted scanning capabilities that go far beyond basic right-click options, providing IT professionals and power users with...
Windows 11 Defender Definitions Update Issue: How to Check and Fix Security Intelligence Stalls
A significant number of Windows 11 users are reporting that Microsoft Defender's virus definitions have stopped updating after November 19, 2025, creating potential security vulnerabilities across...
Microsoft Defender Performance Boost: Faster Boot Times & Fewer Alerts
A recent experiment by a MakeUseOf writer has revealed surprising performance benefits when switching from third-party antivirus software to Microsoft Defender exclusively. The deliberate test, which...
Windows Defender vs Third-Party Antivirus 2025: Performance & Protection Analysis
When I uninstalled my third-party antivirus software earlier this year, the immediate results were striking—my PC felt noticeably faster, system resources were freed up, and the constant background...
EDR-Redir V2 Exploits Windows Bind Links to Blind Security Tools
A new proof-of-concept tool called EDR-Redir V2 is demonstrating how attackers can exploit Windows' bind link facility and cloud filter stack to create sophisticated filesystem redirections that...