I am using windows 7, HP Pavilion M4-1017TX. I did nothing abnormal, just view some web pages and watched some stream videos. Then a stuff called Defender Pro 2015, showing on my screen. And it said MY PC got some viruses. I cannot remove it from my computer. It is quite annoying. Anybody help? thanks in advanced. 
Attach your basic logs. (MBAM, FRST and aswMBR…!!)
Instructions: https://forum.avast.com/index.php?topic=53253.0