![Picture](/uploads/2/8/2/7/282770/2761437.jpg)
Aside from a good antivirus software application, you should also keep at least 1 or 2 anti-malware / anti-spyware apps installed and running. Here are two of my favorites, as well as one of my favorite sites for safely downloading them:
SuperAntiSpyware
MalwareBytes
SuperAntiSpyware
MalwareBytes