I am trying to clean up my second internal hard drive in my desktop in which I just upgraded the OS to Windows 7. My second hard drive (D) was the one that I think I had XP on before I upgraded to Windows 7. I installed Windows 7 on the 1st hard drive (C). So at this point I just want (D) to be as clean, empty as possible. But in trying to delete many of the files, it gets to the point where it says Admin approval required. I cant get past that part. I need help with this please. I dont care if I erase the whole hard drive, just want it cleaned up.