I had an image file saved on my computer to share with someone else, and now I wish to delete it. But whenever I try to delete, move, save over, or otherwise alter it, it tells me I cannot. It says I must have administrative permission, but this is the only Windows account I have, and it is an Administrator account. I tried going in and changing ownership of the file, but it said I didn't have permission to. Is there any way I can get rid of this file?

Well, I'm guessing it was some sort of glitch, because as I went to try something on the image, it wasn't there, and there was no trace of it anywhere. I guess it somehow deleted itself.