Preston Gralla

Google Chrome is a capable Web browser -- but these free downloadable add-ons make Chrome even better.

Cure a sluggish PC, improve your defenses, and have more computing fun with these great programs. Most are freebies, and you can try those that aren't before you put down any cash.

Turn your PC on, and you're immediately vulnerable to malicious attacks. But you can use these free applications to minimize the dangers and protect yourself.