No need to guess, the evidence is already there.

Custom Views: The Custom Views panel allows you to create custom views with different filters. For example, if you want to see only the error logs, you can create a ...

The reason your PC boots slowly is already logged somewhere hidden.

The Event Viewer logs events that lead to errors. The event logs can help you understand what triggered or where exactly the issue is coming from so you can be apply the relevant troubleshooting steps ...