If you are a Windows user, then I’m sure that you got “Cannot delete Folder/File” and “The Source File May Be in Use” errors at least a couple of times. Usually you get those errors when the file you want to delete is used by some program or process. Or you might get an “Access Is Denied” error if you are not logged in as administrator and don’t have permission to access that file or folder. However, if you are logged in as administrator and you’re still getting those errors, there are two cool free apps to help you.