Windows Events — Event ID Reference & Troubleshooting

Windows Event ID 325 – System: Boot Configuration Data Store Corruption

Event ID 325 indicates corruption or issues with the Boot Configuration Data (BCD) store, typically occurring during system startup when Windows cannot properly read boot configuration settings.

Windows Event ID 302 – Unknown: System Process or Service Initialization Event

Event ID 302 indicates a system process or service initialization event that occurs during Windows startup or service management operations, typically logged when core system components begin their initialization sequence.

Windows Event ID 301 – Unknown: System Performance Counter Collection Error

Event ID 301 indicates a performance counter collection failure or registry corruption affecting system monitoring capabilities and performance data gathering.

Windows Event ID 300 – Unknown: Generic Application or System Event

Event ID 300 from an unknown source typically indicates a generic application or system event that requires investigation to determine the actual source and significance.

Windows Event ID 264 – DNS Client: DNS Query Response Timeout

Event ID 264 indicates DNS query timeouts from the Windows DNS Client service, typically occurring when DNS servers fail to respond within the configured timeout period.

Windows Event ID 258 – System: Process Termination with Exit Code

Event ID 258 indicates a process has terminated with a specific exit code, often signaling application crashes, forced terminations, or abnormal process endings that require investigation.

Windows Event ID 256 – Unknown: Generic Application or System Error Event

Event ID 256 represents a generic error condition from an unspecified source, often indicating application crashes, service failures, or system component issues requiring detailed investigation.

Windows Event ID 105 – Microsoft-Windows-Kernel-Power: System Power State Transition

Event ID 105 from Microsoft-Windows-Kernel-Power indicates system power state transitions, typically when Windows enters or exits sleep, hibernate, or shutdown states. Critical for power management troubleshooting.

Windows Event ID 102 – Microsoft-Windows-Kernel-Power: System Power State Transition

Event ID 102 indicates a system power state transition, typically when Windows enters or exits sleep, hibernate, or shutdown states. Critical for diagnosing power management issues.

Windows Event ID 63 – Service Control Manager: Service Start Pending Timeout

Event ID 63 indicates a Windows service failed to start within the configured timeout period. This critical event helps identify service startup issues and potential system performance problems.

Windows Event ID 45 – Kernel-Power: System Power State Transition

Event ID 45 from Kernel-Power indicates a system power state transition, typically when Windows enters or exits sleep, hibernate, or shutdown states. Critical for power management troubleshooting.

Windows Event ID 32 – EventLog: File System Redirector

Event ID 32 indicates the File System Redirector has started successfully. This informational event confirms that Windows file system redirection services are operational and ready to handle file system requests.

Windows Event ID 31 – System: Service Control Manager Timeout

Event ID 31 indicates a service failed to respond to a start or control request within the timeout period, typically 30 seconds, causing the Service Control Manager to log this warning.

Windows Event ID 30 – Kernel-Power: System Power State Transition

Event ID 30 from Kernel-Power indicates a system power state transition, typically recording when Windows enters or exits sleep, hibernation, or other power management states.

Windows Event ID 27 – Application Error: Application Hang Detection

Event ID 27 indicates Windows has detected an application hang or unresponsive state. This event fires when applications stop responding to user input or system messages for extended periods.