See? it is not a question of trying to move a folder and the files inside it as I think you are thinking.
?? You say move files but the question is not about moving file ? I don't understand.
No there is no switch to not delete file when moving them.. If you dont want to delete them than copy them. dont move them.
Sounds like the folder and folder are next to each other. ? but that can be right or ?
But I suspect you mean that the file is inside the folder and that you copy/move the folder ? and the file is moved but the folder is not removed ?
You can check the FileOperation log (Ctrl+L) and see if there are any errors.
But if the if you select to move the folder it will move the folder and the file inside it.
If the folder is not delete and left empty, it can be because of two things. permission you do not have permission to delete the folder.
or because some other program has a lock on that folder.