emergency update Archives

Winsage

April 20, 2026

Emergency Update for Windows Server Following Reboot Issues

Microsoft has released emergency updates for various versions of Windows Server due to issues arising from the April 2026 Patch Tuesday security updates. A significant problem was a reboot loop affecting domain controllers caused by crashes of the Local Security Authority Subsystem Service (LSASS), which disrupted authentication services. This issue was especially problematic during the setup of new domain controllers. Additionally, some Windows Server 2025 systems encountered difficulties in installing the security update KB5082063. The out-of-band update (KB5091157) for Windows Server 2025 addresses both the installation failure and the domain controller restart issue. Other updates targeting the domain controller restart problem were released for additional supported Windows Server versions. Microsoft has introduced an out-of-band update for seven versions, including KB5091157 for Windows Server 2025 and KB5091571 for Windows Server, version 23H2. Furthermore, some Windows Server 2025 devices may boot into BitLocker recovery mode after the update, requiring users to enter a BitLocker recovery key.

Winsage

April 15, 2026

Microsoft fixes bug behind Windows Server 2025 automatic upgrades

Microsoft has resolved an issue that caused unexpected upgrades from Windows Server 2019 and 2022 to Windows Server 2025. This problem was first reported in September 2024 when administrators found their servers upgraded without the necessary licenses. Initially, Microsoft attributed the issue to misconfigured third-party update management software, while developers claimed it was due to Microsoft's procedural errors regarding update release speed and classification. Microsoft confirmed the resolution of the issue and re-enabled the upgrade offer through the Windows Update settings. Additionally, Microsoft released an out-of-band update to address complications from a previous non-security preview update and deployed emergency updates to fix sign-in disruptions across various applications. Other updates were issued to resolve Bluetooth visibility issues and security vulnerabilities in the Routing and Remote Access Service management tool.

Winsage

April 5, 2026

Microsoft Ships Emergency Windows 11 Fix for Broken Patch

On March 31, Microsoft released emergency update KB5086672 in response to issues caused by the previous preview patch KB5079391, which left many Windows 11 devices in a loop with error code 0x80073712, blocking access to March security fixes. Microsoft withdrew KB5079391, which was launched on March 26, and replaced it with KB5086672, a cumulative update that includes all fixes from March 2026. KB5086672 supersedes previous updates, including KB5079473, KB5085516, and KB5079391. Users with the "Get the latest updates as soon as they’re available" setting will receive KB5086672 automatically, while others can manually check for updates or download it from the Microsoft Update Catalog. Microsoft has been issuing multiple emergency updates recently, raising concerns about the quality of its update pipeline, with a history of emergency patches for various issues affecting Windows 10, Windows 11, and Windows Server. The issues from KB5079391 may resurface in the upcoming April cumulative update.

Winsage

April 4, 2026

Microsoft to force updates to Windows 11 25H2 for PCs with older OS versions — ‘intelligent’ update system uses machine learning to determine when a device is ready

Microsoft is updating devices running Windows 11 version 24H2 to version 25H2, as support for 24H2 will end on October 13, 2026. The automatic update targets Home and Pro editions, while organizational devices are exempt. An "intelligent" system using machine learning will determine device readiness for the update, though details on the criteria remain unclear. Additionally, Microsoft released an emergency update, KB5086672, to address issues from a previous faulty update, KB5079391, which caused installation failures.

Winsage

April 1, 2026

Microsoft issues emergency update for Windows 11 — fixes broken March preview update rollout from last week

Microsoft released an optional non-security update for Windows 11, identified as KB5079391, which caused significant installation issues for users, marked by error code 0x80073712. In response, Microsoft issued an emergency update, KB5086672, to address these problems for affected Windows 11 systems, including versions 25H2 and 24H2. This new update supersedes previous updates and includes protections and improvements from the March 2026 Windows security and non-security preview updates, along with an installation fix. The update also offers enhancements such as refresh rates exceeding 1000 Hz, improved auto-rotation and HDR reliability, and enhanced power efficiency for USB 4-connected monitors during sleep. Earlier in the year, the January security update, KB5074109, caused issues for gamers with Nvidia GPUs, leading to frame rate drops and system instability, with some users experiencing boot failures and errors like “UNMOUNTABLEBOOTVOLUME.” Additionally, users reported problems with shutting down or hibernating their PCs and disruptions in cloud-based applications like Outlook, OneDrive, and Dropbox.

Winsage

April 1, 2026

New Windows 11 emergency update fixes preview update install issues

Microsoft released an out-of-band update (KB5086672) to address installation issues caused by the March 2026 non-security preview update (KB5079391) for Windows 11 versions 24H2 and 25H2. The initial update led to errors indicating missing or problematic update files, prompting Microsoft to halt its rollout. The new emergency update consolidates previous updates and is available through Windows Update for automatic installations or can be manually accessed via Settings. Additionally, Microsoft has addressed issues from earlier Patch Tuesday security updates affecting sign-ins with Microsoft accounts and has released two other out-of-band updates targeting Bluetooth visibility bugs and security vulnerabilities in the Routing and Remote Access Service. Guidance has also been provided for resolving access issues on C: drives of Samsung Windows 11 laptops linked to specific Samsung applications.