I'm trying to setup file sharing between a Windows 7 and Vista. In Windows 7 I go to Network and Sharing Center > Advanced Sharing Settings and check Turn on Network Discovery and Turn on File and Printer Sharing, however whenever I click save settings it doesn't apply. I go back to Advanced Sharing Settings and everything is back to the defaults. I know these are the settings I need to change, I just can't change them. Any help appreciated.