Toggle the Real-time protection switch off. You may receive a User Account Control (UAC) prompt asking if you want to allow the change to occur. Select Yes. When you're ready to turn system protection ...

To disable Microsoft Defender on Windows 11, go to Settings > Privacy & Security > Windows Security > Virus & Threat Protection, click Manage Settings, and toggle off ...

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 ...

IT之家 12 月 16 日消息，科技媒体 BornCity 昨日（12 月 15 日）发布博文，报道称微软于 2025 年 12 月 9 日发布的累积更新 KB5072033 被曝存在 BUG，导致 Windows 11（24H2/25H2）及 Windows Server 2025 系统 Defender 状态查询失效。 大量系统管理员发现，在安装补丁后，用于检查 ...

Microsoft has pulled a recent Microsoft Defender update that was supposed to fix a known issue triggering persistent restart alerts and Windows Security warnings that Local Security Authority (LSA) ...

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 ...

Microsoft has recently addressed a weakness in the Microsoft Defender Antivirus on Windows that allowed attackers to plant and execute malicious payloads without triggering Defender's malware ...

Windows Defender supports Windows XP, Windows 2000, and Windows Server 2003. Microsoft's Windows Defender product manager Mike Chan says the anti-spyware utility, which was originally acquired when ...