Go download malwarebytes and Avast form these links. Between those two programs, they catch and kill most things.
http://www.snapfiles.com/get/malwarebytes.html
http://www.snapfiles.com/get/avast.html
Just click the blue download button for each. Then after that finishes click on each downloaded file to install. Once they are installed they are both pretty easy to run scans with. Have each scan your whole drive, C drive on most peoples comp, and they will get all but the very worst stuff. Doesn't matter what order you run them in, probably take a long time to run each, but they work on 99% of the stuff out there. If one can't remove something, the other one usually will.