Utilities & Tools (10000 programs)
Pros: Protects from all types of malware. Free tool. Works alongside any other anti-virus tool. Automatically updates itself.
Cons: Reputation and trustworthiness could be an issue. Full system scan can take quite some time. May not be completely effective. May have compatibility issues with other anti-virus tools.
Pros: Stops your computer over heating by shutting down and restarting. Sits in the system tray discreetly.
Cons: More complicated than it needs to be.
Pros: Very simple to use. Can be executed from the command prompt.
Cons: Doesn't remove everything that it claims to be able to.