Windows 7 - Touchpad Driver Reinstall

Hi,
I recently uninstalled the driver software for my touchpad in order to fix other problems, and now I can't figure out how to reinstall the driver. I tried updating the driver, which did nothing, and it won't let me "roll back" the driver. Any tips?

Thanks,
- slizz

I would recommend going to Dell's support page and download the proper drivers for your computer.
Drivers and Downloads | Dell [United States]
Jerry