Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Mc Afee Anti Virus

TERRIBLE- My computer worked fine until I downloaded this. Once in it continually froze my computer. Had to restart. Even when I put the computer to sleep when I would go to start it up it was frozen. Finally I uninstalled it and no problems since.In addition while installed it slowed my computer down in all areas.