recovery

Winsage
April 21, 2026
Microsoft has released an out-of-band update to fix a restart loop issue affecting certain Windows Server devices after the April 2026 update. The problem arose after installing the April 2026 Windows security update (KB5082063), causing domain controllers in multi-domain environments using Privileged Access Management (PAM) to experience LSASS crashes during startup, leading to repeated restarts and potential domain outages. The update targets Windows Server versions 2016 through 2025 and includes hotpatches for failed installations. Only Windows Servers were affected, while some enterprise devices may need to enter their BitLocker recovery key after the first restart post-installation. Microsoft has issued similar updates recently, raising concerns about the frequency of these occurrences.
Winsage
April 20, 2026
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 20, 2026
Microsoft has confirmed that some administrators are experiencing difficulties installing the KB5082063 security update on Windows Server 2025. This month's Patch Tuesday updates have caused certain Windows servers, especially those with domain controller roles, to enter a restart loop due to failures in the Local Security Authority Subsystem Service (LSASS). Microsoft has released emergency out-of-band updates, including KB5091157 for Windows Server 2025, to address both the installation failure and the restart issues. Additionally, some Windows Server 2025 devices may boot into BitLocker recovery mode after installing the KB5082063 update. A bug affecting Windows Server 2019 and Windows Server 2022 that caused unexpected upgrades to Windows Server 2025 has also been resolved. Microsoft has issued various emergency updates throughout the year to address other issues, including a Bluetooth device visibility bug and vulnerabilities in the Routing and Remote Access Service (RRAS).
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