Minor probs during installation


Is there any way to disable WinXP(home) auto driver installation?
Here's what happens on my system-
- I uninstall the ATI drivers.
- Then once the restart is over, I get the a a thing on the taskbar saying its found a new hardware.
- Then OS auto installs my past drivers I just uninstalled after 10+ seconds.

Another question:
Do I delete the files(ati*.*) under my C:\window\system32 before I install the new drivers?

Thanks in advance.