The flash drive in question may or may not have files on it that windows can see. It could be in a strange format, or it could just have hidden files on it. open my computer, go to tools/folder options/view and tick "show hidden files and folders" see if that allows you to see the files that are on the flash drive. If not, perhaps the flash drive is bad, or maybe is just needs reformatted. keep in mind reformatting will wipe any data that is on the flash drive. to do so, open my computer, right click on the flash drive, and choose format. Hope this helps, take care!