filesystems - Find out which process is locking a file or folder in Windows

How can I find out which process is locking a file or folder in Windows?

For instance, when trying to delete a folder, Windows reports this:

The action can't be completed because the folder is open in another program

Happens the same with a file, but how do I find out what program or application is currently using it and preventing me from deleting the file or folder?

Answer

PowerShell method:

IF((Test-Path -Path $FileOrFolderPath) -eq $false) {
    Write-Warning "File or directory does not exist."       
}
Else {
    $LockingProcess = CMD /C "openfiles /query /fo table | find /I ""$FileOrFolderPath"""
    Write-Host $LockingProcess
}

The openfiles command needs to have support for local files enabled, by running openfiles /local on and restarting.

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