M365 Message Center

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11.07.2025

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Windows

How informed and prepared are you for Windows updates and changes? Bookmark the tools we’re constantly updating and improving based on your feedback. This toolbox consolidates key links and support resources to streamline planning and deployment. When will this happen: The resources summarized in this article are already available and improved. How this will affect your organization: Be better informed and equipped to manage Windows updates and changes through the resources listed in this toolbox. Experience improved accessibility, discoverability, localization, and the overall user experience across our channels. What you need to do to prepare: No action is needed. Learn more about these existing resources under Additional information. Additional information: Bookmark Your Windows release information toolbox to access and learn more about: Windows release health Windows 11 release infor

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10.07.2025

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Windows

If you are an IT admin with questions about managing and updating Windows, we want to help. Every third Thursday of the month, we host a live chat-based event on the Tech Community called Windows Office Hours. Members of the Windows, Microsoft Intune, Windows Autopilot, Windows Autopatch, and Windows 365 engineering teams will be standing by to answer your questions. We also have experts from FastTrack, the Customer Acceleration Team, and Microsoft public sector teams. Want to attend the July 17 session of Office Hours? Add it to your calendar and select Attend on the event page to let us know you’re coming. There is no video or live meeting component. Simply visit the event page, log in to the Tech Community, and leave your questions in the Comments section. You can also bookmark https://aka.ms/Windows/OfficeHours for upcoming dates (and the ability to add this event to your calendar).

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08.07.2025

Services

Windows

Updated July 8, 2025: survey link changedIn the coming months, Microsoft will be rolling out updated Secure Boot certificates needed to ensure a secure startup environment of Windows. Current certificates will start expiring in June 2026 on all Windows systems released since 2012, except for 2025 Copilot+ PCs. This also affects third-party operating systems. Start by checking on the latest available firmware from original equipment manufacturers (OEMs) and enabling Windows diagnostic data. Visit the Secure Boot certificate rollout landing page for guidance for personal devices and IT-managed systems. When will this happen: In the coming months, the following updated certificates will be rolling out: Microsoft Corporation KEK 2K CA 2023, Microsoft Corporation UEFI CA 2023, Microsoft Option ROM UEFI CA 2023, Windows UEFI CA 2023 June 2026, the following certificates will expire: Microsoft

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08.07.2025

Services

Windows

Starting with the April 8, 2025, Windows security updates, protections for CVE-2025-26647 are being rolled out and enforced in phases. These updates change how certificate-based authentication (CBA) is handled when the issuing certificate authority (CA) is not in the NTAuth store but a Subject Key Identifier (SKI) mapping exists in the altSecID attribute.The second phase, Enforced by Default phase, begins today, July 8, 2025.When will this happen:July 8, 2025: Enforced by Default phaseUpdates released on or after July 8, 2025, will enforce the NTAuth store check by default. The AllowNtAuthPolicyBypass registry key setting will still allow customers to move back to Audit mode if needed. However, the ability to completely disable this security update will be removed.October 14, 2025: Enforcement modeUpdates released on or after October 14, 2025, will discontinue Microsoft support for the A

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08.07.2025

Services

Windows

The July 2025 security update is now available for all supported versions of Windows. We recommend that you install these updates promptly. For more information about the contents of this update, see the release notes, which are easily accessible from the Windows 11 and Windows 10 update history pages. To learn more about the different types of monthly quality updates, see Windows monthly updates explained. Highlights for the Windows 11, version 24H2 update: This security update includes improvements that were a part of update KB5060829 (released June 26, 2025).This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.This update makes miscellaneous security improvements to internal OS functionality. This update addresses an issue where notification sounds didn’t play. Affected sounds included those for on-screen alerts, volume ad

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03.07.2025

Services

Microsoft 365 for the web

The cloud.microsoft domain was provisioned in early 2023 to provide a unified, trusted, and dedicated DNS domain space to host Microsoft’s first-party authenticated SaaS products and experiences. This post is to inform admins that the following Microsoft products and scenarios are now available at the cloud.microsoft domain, in parallel with the previous domains. Microsoft Visio (https://visio.cloud.microsoft/) [When this will happen:]The services above are already available on cloud.microsoft, in parallel to their previous domains. You can expect the previous domains to be redirected to cloud.microsoft in the coming months.[How this will affect your organization:] The cloud.microsoft domain has been a part of standard Microsoft network guidance on domains and service endpoints since April 2023. If you are currently following this guidance, this change should not impact users in your org