Windows 10 build 19042.746 brings security updates to Insiders in the Beta and Release Preview channels

The Surface Laptop 3. (Image credit: Future)

What you need to know

Windows 10 build 19042.746 (20H2) is available to Insiders on the Beta and Release Preview channels.
The update doesn't include any new features.
The build includes several security updates to areas of Windows, including Windows App Platform and Frameworks.

Windows 10 Insiders in the Beta and Release Preview channels have a new build to download. The latest update brings Windows 10 build 19042.746 (20H2) and is rolling out now to Insiders, though it doesn't include any new features. The build includes security updates to several key areas, including the Windows App Platform and Frameworks, Windows Media, Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Peripherals, and Windows Hybrid Storage Services.

Here's a detailed explanation of the security changes as found in the latest Insider blog:

We fixed a security vulnerability issue with HTTPS-based intranet servers. After installing this update, HTTPS-based intranet servers cannot, by default, use a user proxy to detect updates. Scans using these servers will fail if you have not configured a system proxy on the clients. If you must use a user proxy, you must configure the behavior using the policy "Allow user proxy to be used as a fallback if detection using system proxy fails." To ensure the highest levels of security, also use Windows Server Update Services (WSUS) Transport Layer Security (TLS) certificate pinning on all devices. This change does not affect customers who are using HTTP WSUS servers.
Security updates to Windows App Platform and Frameworks, Windows Media, Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Peripherals, and Windows Hybrid Storage Services.

You should be able to grab the latest Insider build now through Windows Update.

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Sean Endicott is a news writer and apps editor for Windows Central with 11+ years of experience. A Nottingham Trent journalism graduate, Sean has covered the industry’s arc from the Lumia era to the launch of Windows 11 and generative AI. Having started at Thrifter, he uses his expertise in price tracking to help readers find genuine hardware value.

Beyond tech news, Sean is a UK sports media pioneer. In 2017, he became one of the first to stream via smartphone and is an expert in AP Capture systems. A tech-forward coach, he was named 2024 BAFA Youth Coach of the Year. He is focused on using technology—from AI to Clipchamp—to gain a practical edge.