Be aware of Avast as it's a scamming antivirus program
at first is all good then they real you in to purchase better software to speed up you pc and that is where it all go's wrong ,the updated paid software is a trap it stops and removes various windows drivers calling it malware ( it isn't ) and before long it starts running you hard drive to the maximum speed and in doing so it slows you pc down to 10 of normal speed, so then you check the task manager for running processors and performance only to find that it using only 10% of the CPU but you can see the hardware light is all lit up ,so then you call for remote assistance and that's where it gets interesting ,they offer to assist in fixing you problem but you must pay there engineers $150.00 AU and probably that just the start .
This puzzle me for 2 days and it is only after I called Microsoft specialist that he advised me to remove the Avast antivirus all together.
Following that removal of AVAST Free Antivirus 2015 everything went back to normal

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic