Installing arduin software on my computer

I have just purchased arduino uno, and I am now trying to install it on to my computer by plugging it into my laptop. I cannot get it to install, the computer keep telling me installation was not successful. Is there something that I am doing wrong. If so, could u please help me out so I can get this solved.

(deleted)

What he said but if you have trouble getting the device to show up, refer to this:

http://arduino.cc/forum/index.php/topic,101105.0.html

...to pre-install the drivers. They're not really plug-and-play.