Microsoft explains Windows 11 file‑in‑use message after app closure and provides a fix

Windows 11 sometimes reports that a file remains in use even after the associated application is closed. Microsoft investigated the behavior and identified the underlying cause. The issue stems from a lingering file handle that the OS retains during cleanup. The company published a step‑by‑step fix to release the handle. Users are instructed to run a specific command in PowerShell to reset the lock. Applying the fix clears the erroneous in‑use status for the file. The solution is applicable to all recent Windows 11 builds. Microsoft advises monitoring future updates for any further refinements.