Whatever security or antivirus software you use, it's often useful to have additional tools at your disposal. And it's been a couple of years since I last wrote about one of the best-known additional tools so it's high time I covered it again.
Spybot Search & Destroy checks your PC for spyware and adware. It can also remove the malware too. Once the software is installed, you'll need to ensure that you click the Update button so that you have the latest set of malware definition signatures. These are updated every week.