Try to download "Malwarebytes." It's a program that I've recently started to use on customer's machines at work...it finds quite a few things that other programs cannot, and is in my routine for spyware scans. (CCleaner, Spybot, Malwarebytes, then AVG and most things are removed. I use CCleaner to remove temporary files and clean up the registry...not having to scan temp files can save a lot of time.)