The BlueHammer, RedSun and UnDefend flaws put all Windows users at risk since they turn the operating system’s antivirus ...
Microsoft this week released one of the largest Patch Tuesday bundles in its history, delivering fixes for 163 new Microsoft CVEs in a month that includes three zero-days and eight Critical-rated ...
Three Defender zero-days exploited since April 10, 2026, enabling privilege escalation and DoS, forcing isolation of affected ...
A security vulnerability was recently discovered in Microsoft Defender, the first-party Windows 11 antivirus tool used by ...
In a blog post, Microsoft says Defender is enough for most Windows 11 users. No extra antivirus needed if you keep defaults ...
Threat actors are exploiting three recently disclosed Windows security vulnerabilities in attacks aimed at gaining SYSTEM or ...
Microsoft has fixed 167 vulnerabilities in its April 2026 Patch Tuesday update, including an actively exploited SharePoint ...
Microsoft is weighing in on whether you should install third-party antivirus software on a PC, telling users the built-in ...
Critical154Important1Moderate0LowMicrosoft addresses 163 CVEs in the April 2026 Patch Tuesday release, including two zero-day ...
Ask your administrator Start Windows Security Health Service Reinstall using Windows Terminal Check Group Policy settings Use System Restore point Before you begin, you should know that now Windows ...
If Windows Defender is blocking Avast antivirus on your system, use the following fixes to resolve the issue. Some users were able to fix this issue by disabling the Secure Boot. Secure Boot helps ...