Installing this month's Windows Server security update has knocked some enterprise domain controllers into continuous reboot cycles.

Microsoft is expanding the upgrade options for its server platform: Admins can now switch to Windows Server 2025 directly via ...

Microsoft is investigating LSASS memory leaks (caused by Windows Server updates released during the November Patch Tuesday) that might lead to freezes and restarts on some domain controllers. LSASS ...

After the latest Patch Tuesday updates for May (Windows 11, Windows 10), Microsoft confirmed that the update was causing domain controller authentication failures. The CISA also chimed in later ...

Microsoft has confirmed that its April 2026 Windows Server security update KB5082063 is causing continuous reboot loops in certain enterprise domain controllers running Privileged Access Management, ...

The Windows security updates, especially for servers from April, have partly severe side effects. Some Windows servers restart unexpectedly. Furthermore, there are indications that domain admin logins ...