Watch Out — Do not buy or download any anti-spyware software without checking If That Pop-up Window Is Offering You a Rogue Anti-Malware Product.
Patches & Updates – Anti-spyware software is only as effective as its most recent update because it is inherently reactive treating “known” threats. So when you install anti-spyware software, immediately go to the vendor’s web site and update the program and definitions and turn on auto update.
- Free
- Decent spyware removal performance
- Real-time protection
Link: Free Ad Aware