Getting rid of old AMD drivers for new GTX 680

I'm not really sure where to put this so I posted it here, hopefully this is the right place. Last year I built my own computer and now I wanted to switch from AMD to a GTX 680 video card. I went to driver sweeper and it says that it is no longer avaliable to download. So are there any other safe software programs that I can download to get rid of the AMD drivers and all fragments of them like driver sweeper, or will I have to re-install Windows 7?