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 ...

Use Command Prompt to delete a file If you are unable to delete a file in the traditional way, i.e., by using File Explorer, try deleting that file using Command Prompt.

With it, you can move or delete files, change your Wi-Fi settings, lock your hard drive, and even shut down the computer. But to use Command Prompt, you'll need to know the commands for it.