Microsoft has a new Defender anti-virus update for Windows 11 and 10 images. The new update patches several flaws.

Learn how to update Windows Defender in Windows 11 and Windows 10 quickly and easily! In this step-by-step tutorial, I'll show you how to manually update Microsoft Defender Antivirus, install the ...

Recently, Microsoft delivered its latest Defender patches for Windows 11 ISOs. These definitions are released from time to time alongside the general security updates available during Patch Tuesday.

The majority of the updates that come through Windows Update are for Windows Defender, and for good reason. Windows Defender helps make your antimalware and other security protections stronger.

Over the past few days, some Windows 11 users have been getting incorrect warning messages about Microsoft Defender—the operating system’s built-in security solution—being disabled. According to ...

Microsoft says some users may have trouble turning on Smart App Control after installing this month's KB5127648 Windows 11 ...

Microsoft will distribute Defender for Endpoint EDR updates through Microsoft Update, enabling EDR security improvements to be released independently of monthly Windows operating system updates. The ...

Microsoft released the KB5124010 September 2026 non-security preview update for Windows 11 24H2 and 25H2, with 46 changes including Bluetooth improvements and the ability to remap the Copilot key.