Windows 11 warns of missing virus protection - | Microsoft confirms false alarm:
A security warning in Windows can currently cause unnecessary uncertainty ...
pcgameshardware.de/Windows-Software-277633/News/Windows-11-Warnung-vor-fehlendem-Virenschutz-ist-ein-Fehlalarm-auch-bei-Windows-10-1552402/
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Microsoft confirms Defender false alarm on Windows 10 and 11Following Defender updates, the alert can appear while protection remains active across Windows 10, 11 and Windows Server.
Key FactsAug 30, 2026 · Reading time: ~30 sec.
Summary created with AI assistance · Source: pcgameshardware.de
Summary created with AI assistance · Source: pcgameshardware.de
- After current Defender updates, an alert may appear even though Microsoft Defender Antivirus continues functioning properly.
- The alert can occur across various Windows 11 and Windows 10 versions, as well as Windows Server, when current updates are installed.
- The message may recur at startup and later; disabled notification settings apparently do not reliably prevent it.
- No direct fix is currently available; Microsoft is working on a solution through a future Microsoft Defender Antivirus update.
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computer security software that is used to prevent, detect, and remove malware
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