Using Windows Event Viewer for Troubleshooting

Event Viewer (eventvwr.msc) is Windows' built-in log system. The most useful logs for troubleshooting are under Windows Logs: Application (app crashes and errors), System (hardware and driver events), and Security (login events, policy changes). To quickly find relevant events: right-click a log and select Filter Current Log. Set the Event level to Error and Critical, and set a time range matching when the problem occurred. Look for repeated errors from the same Source — this usually points to the root cause. For application crashes, look for Event ID 1000 (Application Error) and 1001 (Windows Error Reporting). For system crashes, look for Event ID 41 (Kernel-Power — unexpected shutdown) and 6008 (unexpected shutdown). Export relevant events with Save Filtered Log File for review or vendor escalation.