For some reason I can't delete or move or rename a .mkv file. It says "The action cannot be completed because the file is open in another program Close the file and try again" I've tried rebooting in safe mode and still get the same message. I was wanting to move this file to another drive to free up some space. I did a search and tried one suggestion of the program "unblocker". But that didn't work. Anyone have any suggestions on how I can move this file? Thanks is advance!!