This document provides an overview of the Windows logon process and tools for analyzing logon performance issues. It breaks down the logon process into phases like session initialization, authentication, user profile loading, and group policy processing. It then describes tools like Event Tracing for Windows, Process Monitor, and PowerShell scripts for analyzing logon duration and determining where delays are occurring in the logon workflow. Live demonstrations are provided of using these tools to diagnose specific slow logon issues related to group policy or Citrix user profile management.