Lavasoft Ad Aware SE Personal Edition

Ad Aware SE Personal Edition will scan your system for spyware and remove it. It also comes with regular definition updates and free program updates. Ad Aware SE Personal Edition is a free program for personal use so it does lack some features. However, there are other versions that can be purchased that offer active scanning features to protect you against spyware before it infects you, automatic scanning settings, and built in news updates on active dangerous spyware.

Spybot Search & Destroy

Spybot Search & Destroy will scan your system for spyware and remove it. It also comes with regular definition updates and free program updates. Spybot Search & Destroy is a free program for personal use.

Webroot Spy Sweeper

Spy Sweeper not only removes spyware after it has infected your system, but Spy Sweeper will keep you from getting infected in the first place by using Active Shield technology that constantly scans your system stopping and quarantining spyware at the moment its detected before it has a chance to install. Spy Sweeper also comes with regular definition updates, free program updates, and ongoing spyware education through the Spy Sweeper program. However to get the advantages of Spy Sweeper, it has to be purchased and a yearly subscription needs to be kept active.