Malwarebytes'
Anti-Malware - This one is my favorite if you have the
hard-to-remove Vundo or Virtumonde trojans. Highly recommended program!
Ad-Aware
Free Edition by Lavasoft
CWShedder
by Trend Micro – Only Removes Browser Hijackers
Windows
Defender by Microsoft
SpyCatcher
Express by Tenebril
Spyware
Doctor Free Edition by PC-Tools
Spybot
Search and Destroy
Threatfire
