After downloading malwarebytes to remove a virus, that mircosoft sercuity essentils couln't. It found two infections and one virus. I then removed them and things were ok. I then uninstalled malwarebytes and I found that I had lost windows vista, driversand my data as well as all updates for a year and a half. I took it in for repair. And was charged $170.00 for this. Now I wouldn't tell anyone to get malwarebytes. The laptop was a toshiba satellite L305-S5955 running vista with sercurity essentials. read full review »