Had an old version of Vudu, said it needed an update. Attempted, said "Application already exists", Tried installing in a new area, worked fine. Seemed to not want me to override the old one, so I uninstalled it. New one will not let me sign in, it detects that my old one had downloaded a movie, and will let me play it, but will not let me sign in. I type in my user name and password and the box disappears with no change. Have done a full clean reinstall. So far as I can tell, nothing Adobe nor Vudu is left on the PC. Windows 7 Home Premium x64. Works fine on login on my Windows 10 Pro x64.