lsass reboot loop

The lsass reboot loop tag covers a critical Windows Server 2025 servicing issue where the Local Security Authority Subsystem Service (LSASS) causes repeated restarts after installing certain security updates. This problem primarily affects domain controllers and environments using Privileged Access Management (PAM). Microsoft released out-of-band fixes to address both the reboot loops and update installation errors. The tag highlights how security updates can destabilize identity infrastructure, requiring immediate administrative attention. Discussions focus on identifying affected systems, applying emergency patches, and mitigating downtime in enterprise IT environments.