Windows installation media often do not contain the most recent updates for Microsoft Defender. To rectify this, Microsoft has introduced a vital security intelligence update (version 1.429.122.0) for Windows 11, Windows 10, and supported Server editions. This update is significant because it ensures that new installations of the operating system are better protected right from the start.
Why This Update Matters
After installing Windows, users may notice that Defender begins updating only after the setup process is complete. This delay can leave systems vulnerable to known threats since the Defender files included in the installation media can be outdated. The latest update aims to address this gap, providing installation images with the most current malware definitions and binaries. It’s crucial, especially since threats like the Lumma infostealer have recently affected a considerable number of Windows PCs.
Details of the Update
The new Defender package includes:
- Defender package version: 1.429.122.0
- Platform version: 4.18.25040.2
- Engine version: 1.1.25040.1
- Security intelligence: 1.429.122.0
This update pertains to Windows 11, Windows 10 (including Home, Pro, and Enterprise versions), and Windows Server 2022, 2019, and 2016. Users planning to upgrade to Windows 11—especially with specific new CPU requirements—should ensure that their installation media includes the latest updates.
Microsoft also notes that while this update addresses existing vulnerabilities, users will still receive newer updates post-setup. The most recent intelligence version available at the moment is 1.429.293.0. In addition to providing enhanced security, this update may also improve performance for some users.
For more information about the update, you can visit the following links: