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Daily highlights from Microsoft Learn and Message Center. Browse the archive from 1 January 2026 → About this project →

Day in brief

Configuration Manager 2603 sites with KB39169655 need KB40345593

The period’s clearest operational item is a new Configuration Manager fix for bulk registration token failures through a CMG. Intune also tightened the documented authentication path for account-driven Apple User Enrollment. Most remaining entries revise Autopilot, Intune, and Configuration Manager procedures, terminology, navigation, or metadata; the revised Autopilot existing-device instructions contain one concrete procedural change.

  • KB40345593 fixes bulk registration token verification failures for non-Microsoft Entra-joined devices connecting through a cloud management gateway after KB39169655 is installed. For affected version 2603 sites, install it from Updates and Servicing; a site reset is required, existing secondary sites must be updated manually, and no computer restart is required.

  • The automated authentication guidance now explicitly directs administrators to use Option 2, Setup Assistant with modern authentication, for successful account-driven Apple User Enrollment. The other authentication method blocks enrollment for targeted users; the page also clarifies Company Portal, MFA, and phishing-resistant MFA guidance.

  • The revised procedure separates selecting Windows from navigating to Windows Autopilot > Enrollment Status Page, and the previous automatic-enrollment step is no longer included. Administrators consulting the article should follow the updated navigation.

This period briefing was generated by AI from the tracked Microsoft Learn and Message Center changes.

29 updates

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Ref Automated Authentication Methods

Doc updateAction required

The article now explicitly directs administrators to use Option 2: Setup Assistant with modern authentication for successful automated enrollments involving account-driven Apple User Enrollment. It also clarifies Company Portal, MFA, and phishing-resistant MFA guidance.

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Windows Autopilot for Existing Devices | Microsoft Learn

Doc update

The page received wording, capitalization, metadata, and structure updates. Enrollment Status Page setup now separates Windows selection from the Windows Autopilot > Enrollment Status Page navigation, and the previous automatic-enrollment step is no longer included.

Windows Autopilot registration overview | Microsoft Learn

Doc update

The overview now emphasizes registration requirements before deployment, clarifies hardware hash capture and upload, updates terminology, and revises descriptions of vendor registration, Microsoft Entra objects, profiles, and registration terms.

Autopilot Scenarios

Doc update

The page description, scenario table formatting, punctuation, and terminology were updated for clearer presentation, including replacing “utilizes” with “uses.”

Autopilot Motherboard Replacement

Doc update

The article updates wording and navigation instructions for deleting devices from Intune and deregistering them from Windows Autopilot. The previous note about using Sync to accelerate deregistration was removed.

Entra Join Device Group

Doc update

The tutorial updates wording, formatting, navigation steps, and examples. It also clarifies the recommendation to use separate assigned groups for different device preparation policies and refines service principal and PowerShell instructions.

Automatic Device Group

Doc update

The tutorial updates wording, punctuation, formatting, and descriptions for navigating Groups, selecting the service principal, authenticating with Microsoft Graph, and responding to permission prompts.

Automatic Registration of Existing Devices | Microsoft Learn

Doc update

The article’s title and description were updated, and wording was clarified around device requirements, hardware-hash requests, the Convert all targeted devices to Autopilot setting, and the Windows Autopilot for existing devices scenario.

Windows Autopilot OEM Registration Process | Microsoft Learn

Doc update

The article updates its title and description, replaces “OEM” with “manufacturer” throughout, and refreshes its metadata. It continues to describe manufacturer registration, device guidelines, and Microsoft Entra Global Administrator approval.

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Tutorial Co Manage New Devices

Doc update

The documentation now uses present-tense wording for enabling co-management, clarifies use of the saved enablement command, and simplifies the pilot collection instruction. The supported Azure clouds remain unchanged.

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Co-management Workloads - Configuration Manager | Microsoft Learn

Doc update

The page title, metadata, formatting, and wording were updated. Guidance now more clearly describes workload switching, Configuration Manager client settings after moving Windows Update, Windows Autopatch requirements, and resource access policy behavior.

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Defender Advanced Threat Protection

Doc update

The page received grammar, wording, and formatting updates, a new metadata date, and clearer descriptions of supported operating systems and onboarding paths for MDE Client, MMA, and Windows 8.1 devices.

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