Go to Kim Komando’s site Komando.com
She has downloads for excellent free firewalls, AV software and ADware/spyware removers.
I use AVG Anti virus, Zone Alarm Firewall, Spybot and Lavasoft Adaware to remove crsp.
CCleaner is good too.
All the stuff on Kim’s site is free and is well proven.
Also she is the real-life wife of radio talk show host Barry Young (the nearly famous Barry Young show) on KFYI, the Valley's Talk Station.
Full Disclosure: I used to listen to him in the morning before I moved to Phoenix.
Cheers!
Any ideas?