I've had some trouble deleting a file off my external hard drive connected to my iMac. The file shows up on the mac side but doesn't appear when I switch over to windows. I've tried to uncheck the permissions of the locked file but it will not unlock it. When I try to send it to the trash, a dialogue appears saying that it is a locked file but do you want to delete it anyway. Nothing happens when I hit continue to delete the file. Anyone have any suggestions to get rid of this file?