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

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

Microsoft has resolved a bug that caused Windows Defender to crash after a recent security update, resulting in 0xc0000005 access violation errors on some affected systems.

Microsoft fixes false Defender Antivirus disabled alerts with version 4.18.26080.4, resolving the issue across supported ...

The glitch, which Microsoft says it working to fix, creates an attacker opportunity by convincing users to ignore critical cybersecurity alerts.