I see them too Carol, last one was when I installed windows desktop search for another trial run with it, the installation process seemed to just pick the emptiest drive i had, which was an external USB drive at the time, to use. I had thought they were coming from some installation but wasnt sure what, this day I hapenned to have a file manager open and watched it appear lol. I just delete them, has never caused me any trouble, windows search uninstalled ok after the files were gone.