I to have 2 systems like that. Both started today. First system was showing fakems.ed blocked starting this afternoon. More than 10000 files. So, I brought in 2nd system that is less than 2 month old with win 7 pro, AVG internet security 2014, Malwarebyte pro. No other software installed. After finishing malwarebyte update about 10min ago, in started showing the block messages. I just shutdown the system. I am pretty sure it has somethimg to do with malwarebyte update. Since the system only been started 4 times for updates, there is no way for it to get such infection.