This policy setting configures the time in minutes before a detection in the ?critically failed? state to moves to either the ?additional action? state or the ?cleared? state. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\Windows Defender\Reporting!Configure time out for detections in critically failed state (2) REG: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Reporting!CriticalFailureTimeout