I installed a 'pac-man gadget' from the windows website. This turned out to be a non-working gadget that is now unable to uninstall. When I go to uninstall the gadget it says "This action cannot be completed because the program is opened in another file." I believe it is a virus disguised as a program used to take information. I have Webroot Anti-virus and thus far nothing has happened but it is impossible to remove the widget. Any help on how to remove this would be appreciated.