I have a windows 8 and even when no one is on the computer you hear talking and then when you check there is an ad running on the system. It is an 8.1 Dell with 1000 gig hard drive, 6 gigs of ram with 64 bit operating system, x64 based processor. I have run super spyware then I did malwarebytes. Windows defender is what I use as an antivirus scanner. Any help would be greatly appreciated.