Windows 11 Build 22621.457 rolls out to Release Preview Channel, improving Microsoft Defender for Endpoint

The latest Insider build of Windows 11 improves Microsoft Defender for Endpoint’s ability to combat ransomware.

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What you need to know

Microsoft rolled out Windows 11 Build 22621.457 to Release Preview Channel Insiders this week. The update brings a small handful of new features, including enhancements to Microsoft Defender for Endpoint that make the tool better at combatting ransomware. The Settings app on Windows 11 gained the ability to show usage history for several resources as well, including the camera, microphone, and phone calls.

As is normally the case, the build also brings a long list of fixes.

Here’s what’s new in Windows 11 Build 22621.457:

Windows 11 Build 22621.457 changelog

Windows 11 Build 22621.457 fixes

Microsoft outlined all of the fixes and improvements in itsblog postabout Windows 11 Build 22621.457.

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Sean Endicott is a tech journalist at Windows Central, specializing in Windows, Microsoft software, AI, and PCs. He’s covered major launches, from Windows 10 and 11 to the rise of AI tools like ChatGPT. Sean’s journey began with the Lumia 740, leading to strong ties with app developers. Outside writing, he coaches American football, utilizing Microsoft services to manage his team. He studied broadcast journalism at Nottingham Trent University and is active on X @SeanEndicott_ and Threads @sean_endicott_.