So my friend let me borrow her sims 3 games(showtime and pets) so i tried to put it into the my disk and it's not showin
First, make sure it is a PC game. It will say so on the disc. Second, not all discs have a autorun that works properly. you might have to go into the file explorer, and on the left hand side with the list click computer, and then to your disc drive(it will be called E: in most cases). If the disc shows up, just open it and find the autorun file, and double click it. But if the disk drive doesn't show up, then either something's not connected or it's broke. and if you see a disk drive but it's not reading it, the disc might be damaged, or like I said above it may not be a PC disc. Although, even if it is not a pc disc it should still show up in the disc drive.
some sims disks can't be played on any other computer than the one it was originally installed on. :(