It's an image file so it can be quite much anything. So u downloaded it? Then what is it supposed to be? Well be it anything either burn it to a disk (think u need to make an image disk) or download this www.daemon-tools.cc/ . <- Easy to use, and never had a single problem with it.TRDCorolla said:What do I do with .iso files? The icon of that particular file doesn't seem to be recognized by Windows, but it's 450MB. How do I get it to install?