If you can't delete an ISO file as the file is open in your System, check if it is mounted as a drive or not. Uses these proven fixes to resolve the issue.

If you cannot delete a file or a folder on an NTFS file system volume in Windows, follow the solutions mentioned in this post to resolve the issue.

Prior to 10.5, you had to manually delete them on the other system, or use Terminal trickery to remove them on the Mac prior to copying. As of 10.5, though, you can just use the dot_clean command ...

When you can't open, edit, or delete a file in Windows File Explorer, the file is still open in a program running in the ...

In another entry of his Linux 101 series, Jack Wallen shows you how to delete files and folders from Linux using the Command Line Interface (CLI).