I'm trying to delete files off a flash drive. It won't let me delete some files because I "need admin permission". I am the administrator. I have deleted over 8 gbs from this flash drive but can't delete 6 picture files because "Administrator permission needed". These pictures ( along with many that I could delete) were in a file created by someone else. I was first told the file names were too long or corrupted. Looking at the file names..They look wrong or corrupted. Not a problem because I want to delete them but can't. I can't move them or delete them. Properties for each file show 0 bts, but properties for the folder they are in show 3.3 gbs! There were many other pictures in the same folder that deleted just fine! Can anyone help?