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OpenedFilesView vs Handle: catalog facts
OpenedFilesView	Handle
Free Freeware from NirSoft with no paid tier.	Free Free download from Microsoft Sysinternals.
Windows	Windows, Command line
Finds which process is locking a file Close handles or processes directly from the list	Finds which program has a file locked Covers registry, thread, process and other handle types
Does not work on Windows 10 or 11 with Secure Boot turned on Requires administrator rights	Command line only; Process Explorer offers a GUI equivalent Requires administrative privileges
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License: Sysinternals EULA
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.