Windows 11 KB5077181 Update Triggers Infinite Restart Loop on Some Devices

Microsoft’s February 10, 2026 cumulative update KB5077181 for Windows 11 (24H2/25H2) is being linked to severe boot failures and infinite restart loops on some devices; community reports cite repeated reboot cycles, SENS and DHCP errors, and installation error codes. The update also delivers security fixes for dozens of vulnerabilities (including an actively exploited zero-day, CVE-2026-21533) and Secure Boot certificate changes; mitigations include uninstalling the update via Control Panel or WinRE and staging deployments for enterprises.