I recorded a full boot trace with Microsoft’s free profiler and found what was really slowing my startup

I’ve trimmed my startup apps list quite a few times, and even gone through Autoruns line by line. Yet none of these tools perfectly explain why my laptop can feel busy long after the login screen.

I decided this time to record a complete boot using Microsoft’s Windows Performance Toolkit, included with the Windows ADK, rather than continue guessing. The trace revealed activity that normal startup tools don’t show, and the experience changed how I view slow startup.