I’m from Brazil, bought the AVAST Premier plus Grime figther, but I can not use the Grime figther, for when he “runs” in the Win 8.1, says he found problems and have to restart the Note Book to correct, to start, runs the Grime figther, it makes a checkout, but at any given time the system says the machine has a problem and that “can not do their work there and will be working to solve the problem,” does not say anything, do not know if this running or is there no movement of the Book Note where we can see that the Grime Fighter is running, then I go in the top of the screen, right and closing the program, I tried two more times and run this occurs then, and there I bought the program by chance, spent money !!need a support urgent AVAST, as do it