Microsoft Defender Update Addresses Security Gaps in Windows Installations

Microsoft Defender Update Addresses Security Gaps in Windows Installations

First seen 6 Apr 2026, 02:13 UTC NeowinGbhackersCybersecuritynews 94% similarity 27.9

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Microsoft has released a new update for Windows Defender, specifically targeting outdated anti-malware definitions in Windows installation images. This update, identified as security intelligence update version 1.445.323.0, is crucial for Windows 11, Windows 10, and various Windows Server versions. The update aims to mitigate temporary security risks that arise when new installations utilize outdated protection from the OS installation images. The update enhances threat detection capabilities against various malware types, including trojans and ransomware. Microsoft emphasizes that these updates not only improve security but can also enhance system performance. The latest intelligence update available at the time of writing is version 1.447.185.0. Users are encouraged to ensure their systems are updated to close any protection gaps.

Key Points: • Microsoft released security intelligence update version 1.445.323.0 for Windows Defender. • The update addresses outdated anti-malware definitions in Windows installation images. • Affected systems include Windows 11, Windows 10, and multiple Windows Server versions.

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Timeline

2026-03-01
Security intelligence update version 1.445.323.0 released
2026-04-05
Microsoft announces new Defender update for Windows installations
Recent
Latest intelligence update version 1.447.185.0 available

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