Over the years, I've discovered a collection of free Windows tools that help me diagnose what's dragging my system down. These tools have saved me countless hours and helped me avoid expensive computer repairs from certified technicians.

6 Windows Device Performance and Health

Let’s start with the simplest way to check your computer’s overall condition. The Windows Device Performance & Health feature is my go‑to tool for an initial check. Whenever I feel something isn’t performing well, I open this tool and quickly look for yellow warning icons. It lets me review storage capacity, battery health, potential app issues, and whether my system time is properly synced.

To visit it, press the Windows key , type "Windows Security", and hit Enter . When Windows Security opens, click Device perf

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