Why it worked
The video provides a practical, actionable tip for a common problem (slow computer) using a free, built-in tool. The "hidden gem" aspect and the promise of a quick diagnosis appeal to a broad audience, while the clear, step-by-step demonstration makes it easy to follow.
Summary
The video demonstrates how to use the built-in Windows tool, Perfmon, to diagnose system performance issues. It explains how to run the tool with administrative privileges to get a detailed report on what might be slowing down the computer.