NVIDIA to ATi

So I just upgraded from an onboard NVIDIA 6150SE to ATi Radeon HD 5570 and I'm wondering, since I have a new graphics card from a different manufacturer, can I delete the files which have something to do with NVIDIA?

Here they are:
NVIDIA Drivers x64--3.25 MB
NVIDIA ForceWare Network Access Manager--25.14 MB
NVIDIA Graphics Driver 3-07.83 x64--138.68 MB
NVIDIA PhysX--111.06 MB
NVIDIA Update 1.10.8 x64--1.04 MB

If some are important, can you tell which I can uninstall?

Also the NVIDIA Settings is still present in the Show Hidden Icons, how do I remove it?

Also, any tips on how to speed up utorrent? Tried everything on Google but they don't work

install this that help you for remove wat you want from your pc and its free and simple

http://www.********e.com/download/b8.../revosetup.rar

its media fire