Aaargh. One of my daughter's friends was having 'trouble' connecting to our Airport base over the weekend. So I took a look at her Dell "Xps" laptop. Vista Home Pro, blah. blah, blah.
Jeezo, what a mess. If it was human it would have been pregnant with quintuplets (of different species), have at least 20 different forms of venereal diseases, and probably be carrying one of those alien chest-bursting critters inside it. I did what I could for a grueling hour, gave up, and recommended that she 'nuke and pave' the entire system. Note that the machine JUST came back from Dell service in that incredibly infected condition. And they keyboard wasn't installed right- it was all bulged up, and looks like it scratched the screen.
I told her to call Dell, get her money back, and buy a Macbook.
Oh, and my daughter's laptop ? Macbook. No viruses. No spyware. It just works. yay !