Releasing Windows 11 Build 22631.5409 to the Release Preview Channel

Hello Windows Insiders, today we’re releasing Windows 11 Build 22631.5409 (KB5058502) to Insiders in the Release Preview Channel on Windows 11, version 23H2 (Build 22631).

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Releasing Windows 10 Build 19045.5912 to the Release Preview Channel

Hello Windows Insiders, today we are releasing Windows 10 22H2 Build 19045.5912 (KB5058481) to the Release Preview Channel for Insiders who are on Windows 10, version 22H2.

This update includes the following features and improvement

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Chromium: CVE-2025-4609 Incorrect handle provided in unspecified circumstances in Mojo

This CVE was assigned by Chrome.  Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see [Google Chrome Releases](https://chromereleases.googleblog.com/2025) for more information. Continue reading Chromium: CVE-2025-4609 Incorrect handle provided in unspecified circumstances in Mojo

Chromium: CVE-2025-4664 Insufficient policy enforcement in Loader

This CVE was assigned by Chrome.  Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see [Google Chrome Releases](https://chromereleases.googleblog.com/2025) for more information. Google is aware of reports tha… Continue reading Chromium: CVE-2025-4664 Insufficient policy enforcement in Loader

Microsoft App Assure helps Nord Security build for Windows on Arm

With the recent release of Copilot+ PCs, developers are increasingly focused on optimizing their apps for these devices. Copilot+ PCs are the fastest, most intelligent

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Copilot on Windows: “Hey, Copilot!” begins rolling out to Windows Insiders

Hello Windows Insiders, we are beginning to roll out an update for the Microsoft Copilot app on Windows via the Microsoft Store which introduces the following changes and improvements:

Copilot wake word: Windows Insiders can now inv

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