I have spent many hours reading all the suggestions on the web and trying everything I can think of to get my webcam working again. I have repaired errors in the registry and tried everything up to and including 'rattling crocodile bones during a full moon'. I have been through the list of methods on the Microsoft site very carefully three times now. It fails every time with 'Setup cannot continue because an unexpected error has occurred. I have had the Microsoft LifeCam Cinema for a while now and about 6 weeks ago it stopped working so I tried to reinstall the software and drivers.