[R] How to delete file - http://CannotDeleteFile.net

[Mark Finger]

Have you ever run into a situation where you wanted to delete a file,
but Windows simply wouldn’t allow you to do it? Personally, these
things happen to me all the time, especially when I’m at a client’s
house trying to get their machine clean of malware. Have you ever
tried deleting a locked file using common windows commands? If so,
then you’ll know that this is just not possible.

if yes, you can try special tool Long Path Tool
http://HowToDeleteFile.com