libusb uninstallation

i installed a ps2 emulator and wanted to use my ps3 controller with it which required me to install libusb. things were all fine and dandy till i restarted my computer to find out that all my network, mouse, usb, and sound drivers would not load.
i panicked, but i was lucky that a system restore got them to be able to load again.
can anyone tell me how to completely remove all traces of libusb from my computer?i'm running Windows 7 64bit home premium stocked by HP. prefer not format considering there are some software in here that i want to keep.

Go Start menu, Control Panel, Uninstall a program (under programs), find libusb, and double click to start the uninstall.

Replying to #2

i want to get rid of all traces of libusb.