The Sims 3

Hello,

Every time I try to run my Sims 3 from the disc it just tries to uninstall the game. I open up my computer, right click on it, and select "Open AutoRun" but the same thing happens. The launcher won't open, it just asks me if I really want to Uninstall The Sims 3 Generations. I can't find the location of the files for the Sims 3 in my folders anywhere so I don't know how to try and access it from there, either.

If you could help, it would be greatly appreciated. Thanks.