Security intelligence version: 1.391.476.0 This package updates the anti-malware client, anti-malware engine, and signature versions in the OS installation images to following versions:
For more information, see Manage Windows Defender Antivirus updates and apply baselines. Versions prior to the previous two versions will no longer be supported.
Windows 10 (Enterprise, Pro, and Home editions)Īfter a new package version is released, support for the previous two versions will be reduced to technical support only. This feature supports the following OS installation images: This article describes antimalware update package for Microsoft Defender in the OS installation images (WIM and VHD files). No ordering is required to apply the latest cumulative update (LCU) versus the Microsoft Defender update offline. A 3-month update frequency is recommended. We recommend you regularly service OS installation images to update Microsoft Defender binaries and minimize this protection gap in new deployments. Devices using either the Windows built-in antivirus or another security solution can benefit from these updates. Defender updates also contain critical performance fixes that will improve the user experience. The devices on which these deployments are made are inadequately protected until they receive the first antimalware software update. This is because the OS installation images may contain outdated antimalware software binaries. The first hours of a newly installed Windows deployment can leave the system vulnerable because of a Microsoft Defender protection gap.
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