Microsoft reveals why Windows 11 keeps saying a file is in use after you close the app, plus the fix
Summary
Windows 11 may show 'file in use' even after closing an app. The article explains file handles, reasons a file can stay locked (antivirus scanning, network references, DLLs), and outlines how to diagnose with Sysinternals Handle and Process Explorer, plus PowerToys File Locksmith and a rename workaround.