On some PCs, Windows 11 has been incorrectly warning that Microsoft Defender is turned off, even when it isn't, for almost two months.

Recently, a handful of Windows 11 users have reported on Microsoft forums that they are repeatedly getting warnings that their PC’s security is off. It appears that a Windows 11 antivirus bug falsely ...

After installing the latest Defender Antivirus update for Windows 11, users have started reporting that their operating ...

Microsoft has fixed the bug that made Windows Security wrongly claim Microsoft Defender Antivirus was turned off. According to Windows Latest, the fix comes in Defender platform update 4.18.26080.4, ...

Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates.

Microsoft says misleading Windows Security pop-ups claiming Defender Antivirus is turned off are caused by a glitch, with a fix in the works.

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. New warnings are a mistake. Microsoft has now confirmed that new warnings alarming Windows ...

The glitch, which Microsoft says it working to fix, creates an attacker opportunity by convincing users to ignore critical cybersecurity alerts. Microsoft on Friday reported that a glitch is causing ...

Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates.