M365 Message Center

Geändert

05.05.2026

Services

Windows

Windows Update can be used to perform an in-place upgrade of Windows Server without installation media. This Windows Server feature update can help move Windows Server 2022 or Windows Server 2019 installations to Windows Server 2025, following the same process used to download monthly updates through Windows Update. Upgrading helps keep your servers secure, supported, and able to use the latest features and performance improvements. Plan your installation and learn about the in-place upgrade paths by version, prerequisites, and restrictions, at Opt-In Windows Server 2025 Feature Update from the WS 2022 and WS 2019 Settings Dialog. When will this happen:This feature update path is available now. To see the Windows Server 2025 offer in Settings > Windows Update, servers must meet these update baselines:Windows Server 2022: March 2026 Cumulative Update (KB5078766) or later. Windows Server 2

Geändert

30.04.2026

Services

Windows

The April 2026 non-security preview update is now available for Windows 11, versions 26H1, 25H2, and 24H2. Information about the contents of this update is available from the release notes, which are accessible from the Windows 11 update history page. To learn more about the different types of monthly quality updates, see Windows monthly updates explained. Looking to explore upcoming features and improvements in Windows 11? Check out the Windows roadmap. It includes what’s coming to the Windows Insider Program, what’s gradually rolling out, and what’s generally available. Highlights for the Windows 11, version 25H2 update: Xbox mode is now available on Windows 11 PCs, including laptops, desktops, and tablets. Xbox mode provides a streamlined, full-screen interface that places games front and center while minimizing background activity. You can enter Xbox mode from the Xbox app, Game Bar

Geändert

30.04.2026

Services

Windows

Simplify Microsoft Store app management with dynamic removal on more devices across your enterprise. Use policy to remove any preinstalled MSIX/APPX app by referencing its Package Family Name (PFN). It's available to Enterprise and Education devices running Windows 11, versions 25H2 and 24H2. Starting with the April 2026 Windows non-security update, you can use Group Policy or custom OMA-URI for mobile device management (MDM). Additional Microsoft Intune capabilities are coming later. When will this happen:October 2025: The policy, “Remove default Microsoft Store packages from the system”, first became available. March 13, 2026: The expanded policy became available to Windows Insiders in the Dev and Beta channels. April 2026 Windows non-security update: The expanded policy is broadly available for use with Group Policy and custom OMA-URI. Future releases: Additional Intune capabilities a

Geändert

28.04.2026

Services

Windows

IMPORTANT:This notice is only relevant for environments where:Visual Studio 2026 with .NET version 10.0.6 is used Scan Cab is used to check for update compliance The April 2026 Scan Cab was deployed before 10:30 AM PT on April 28, 2026 An updated version of the April 2026 Scan Cab was made available at 10:30 AM PT on April 28, 2026. This Scan Cab includes new metadata corresponding to updates for Visual Studio 2026. The Microsoft update for Visual Studio 2026 released on April 28, 2026, includes additional protections to address CVE-2026-40372: ASP.NET Core Elevation of Privilege Vulnerability. See the Additional information section of this message for details. How this affects your organization:IT administrators who downloaded the Scan Cab before 10:30 AM PT on April 28, 2026, should re-acquire and re-deploy it if the Scan Cab is used to assess updates for environments where Visual Stud

Geändert

27.04.2026

Services

Windows

Microsoft Defender now provides IT teams centralized visibility into Secure Boot 2023 certificate readiness across your device fleet. A new assessment categorizes your devices automatically as exposed, compliant, and not applicable. In the Defender portal, go to Exposure Management > Recommendations > Devices > Misconfigurations. For exposed devices, remediation guidance is directly available through the recommendation. When will this happen:The new Secure Boot 2023 certificate assessment is now available in Microsoft Defender. June 2026: Secure Boot 2011 certificates begin expiring and need to be replaced. How this will affect your organization:When certificates expire in June 2026, devices that haven't transitioned to the newer Windows UEFI CA 2023 certificates will no longer be able to receive new security protections for the early boot process. To help organizations prepare, Microsof

Geändert

23.04.2026

Services

Windows

Improve user experience with a single Microsoft Copilot app to use on any given device. The new RemoveMicrosoftCopilotApp policy setting allows you to uninstall Copilot from devices in your organization in a non-disruptive way. It only applies to devices and users that meet the following conditions: Microsoft 365 Copilot is also installed. Copilot wasn’t installed by the user. Copilot wasn’t launched in the last 28 days. It’s available as a Policy CSP and Group Policy. When will this happen:The policy is broadly available as of April 14, 2026. It’s part of the April 2026 Windows security update and later. How this will affect your organization:This policy simplifies the user experience by providing a single Copilot app to use on any given device. What you need to do to prepare:No action is needed if your organization prefers the default experience and allows users to use Copilot by choic