Microsoft Defender update for Windows operating system installation images

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https://support.microsoft.com/en-us/topic/microsoft-defender-update-for-windows-operating-system-installation-images-1c89630b-61ff-00a1-04e2-2d1f3865450d

Summary

The first hours of a newly installed Windows deployment can leave the system vulnerable because of a Microsoft Defender protection gap. This is because the OS installation images may contain outdated antimalware software binaries.

The devices on which these deployments are made are inadequately protected until they receive the first antimalware software update. Defender updates also contain critical performance fixes that will improve the user experience. Devices using either the Windows built-in antivirus or another security solution can benefit from these updates. We recommend you regularly service OS installation images to update Microsoft Defender binaries and minimize this protection gap in new deployments. A 3-month update frequency is recommended.

No ordering is required to apply the latest cumulative update (LCU) versus the Microsoft Defender update offline.

This article describes antimalware update package for Microsoft Defender in the OS installation images (WIM and VHD files). This feature supports the following OS installation images:

Windows 11

Windows 10 (Enterprise, Pro, and Home editions)

Windows Server 2019

Windows Server 2016…

Defender package version: 20230330.2

This package updates the anti-malware client, anti-malware engine, and signature versions in the OS installation images to following versions:

Platform version: 4.18.2302.7

Engine version: 1.1.20100.6

Security intelligence version: 1.385.1537.0..

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