Microsoft tests Windows Explorer speed, performance improvements

April 20, 2026
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Testing in the wild

It has been reported that Microsoft is quietly testing speed and performance improvements for Windows File Explorer. Details are thin — Microsoft hasn't issued a formal announcement — but the changes appear to be rolling out as controlled experiments to select machines and Insider channels. Think of it as a slow, careful nudge rather than a headline-grabbing overhaul.

What testers are seeing

Early reports from testers and observers suggest Explorer feels snappier: folders and navigation appear to load faster, and background CPU and disk use may be lower during common file operations. These accounts are anecdotal and Microsoft’s telemetry-driven A/B testing model means not everyone will see the same thing at the same time. Still, for many users the difference is immediately noticeable — and that small jolt of speed is often all it takes to change day-to-day frustrations into relief. Who hasn’t cursed the spinning hourglass?

Why it matters

File Explorer is one of those quietly essential parts of Windows that users notice only when it breaks or drags. Improving responsiveness feeds directly into the user experience of Windows 10 and 11, and could reduce the number of helpdesk tickets and tempers unleashed on keyboards. It also fits a broader trend: Microsoft iterating on long-standing UI components rather than waiting for a single major release to fix them. Allegedly, more tweaks could follow if these tests prove successful — stay tuned.

Sources: bleepingcomputer