How to use Windows 11's hidden battery health tool to diagnose your PC (before it's too late)

How to use Windows 11's hidden battery health tool to diagnose your PC (before it's too late) ...

How we test laptops at ZDNET in 2026

How we test laptops at ZDNET in 2026 ...
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Your laptop has a built-in hardware test you’ve never run — here’s why you should

Even after using laptops for years, many users don’t even touch the most important tool: the built-in hardware diagnostics. These tests are preinstalled on every Windows laptop and Mac. Since they are ...