Trovi was the search engine on this computer. I suspected it was causing havoc and when I tried to

remove Trovi, I could not succeed.  Finally a technician managed to remove it.  My computer works fine right now but I have a notification (unsigned) that "C:Program1" possibly is causing damage and offering to remove same.  I clicked the more info. box and Trovi was part of the explanation.  Some light shed on this would be appreciated.