Learn how to remove or delete undeletable or large files, folders & subfolders quickly & permanently using the Command Prompt in Windows 11/10.

Windows is often praised for its ease of use, which is why glitches like problems deleting a file or a folder are especially frustrating. There are many solutions to this seemingly simple roadblock, ...

Technically, I was trying to get rid of a a folder within a folder within a folder by deleting the top-level folder—a mouthful, I know—but Windows wouldn’t delete it.

This background program stays resident and detects when you try to delete, copy, rename, or move a file that is in use.

Windows won't let you delete, move, or rename a file if a program is using it. Frustratingly, it also won't tell you which program is using the file so that you can solve the problem.