What u dont want 2 do is swamp ur hdd with cleaning tools for spyware. U need 1 spyware program, an antivirus and if u actually neeeeeeeeed it a firewall.
All these can be seen below.
Spyware removers: -
http://www.download.com/Bazooka-Adwa...ml?tag=lst-0-1
Anti-Virus -
Free or
Paid
Firewall -
Free -
Paid