I recently upgraded to Win 7, home premium, 64 bit from my old XP. I have the old C: drive in an external box. Somehow, it got the title of my thumb drive. I tried renaming my external box to backup and it won't change. I am the administrator and the only one to use the computer. I can download and install apps with no problem. I can also delete apps when needed. Any suggestions on hope I can do this?