Anti-Spam & Anti-Spy (175 programs)

Pros: Fast, thorough system analysis. Nice extra tools. No installation required.

Cons: Help system is only available online.

Pros: Advanced rootkit detection. Free scanner. Keeps PCs free from common problems.

Cons: Payment required to remove detected issues. Hard to unsubscribe.

Pros: Powerful spam filtering. Can be set up very easily. Lets you block all mails from countries notorious for spammers. Supports a huge range of email clients.

Cons: Aggressive mode is a little too strict. Won't protect your Webmail.