Removing Apple Mobile Device Support

I installed the new itunes and it says that I do not have a current version of Apple Mobile Device Support when I connect my iphone to my pc running Windows Vista. so I went to the control panel and revoved/uninstalled itunes and all apple programs so I can do a fresh reinstall. Problem when I try to uninstall Apple Mobile Device Support. I click uninstall and it acts like its uninstalling and then the windows says Please wait wile windows configures Apple Mobile Device Support. After the progress bars gets to 100% its starts going backwards then when it ends the Apple Mobile Device Support is still on my computer and I keep trying to unistall it and it won't. I just want to remove everything so I can do a fresh itunes install so I can update my iphone. Thanks in advance for the help.