Introducing Windows Live OneCare, the all-in-one, always-on PC Care Service from Microsoft. OneCare helps keep your PC safe and secure while making your life easier. From virus scanning and file backups to automatic printing sharing of all the PCs in your household, OneCare helps manage it all for you. It works quietly in the background on your computer, so you don't have to worry about nasty interruptions from viruses, spyware, hackers, and other unwanted intruders. It also goes beyond security, regularly backing up all your important files and cleaning up and tuning up your computer to help keep it running at top speed. Windows Live OneCare helps protect your computer, and its automated optimization features keep your PC running at its speediest. Protection Plus, with its antivirus and antispyware scanners, managed, two-way firewall, and integrated anti-phishing technology, helps protect your computer from viruses, worms, Trojan horses, hackers, phishing, and other threats. You can even scan attachments you receive via Windows Live Messenger or MSN Messenger. Performance Plus regularly defragment your hard disk, removes any unnecessary files that can clog your computer, and helps make sure important security updates from Microsoft are installed efficiently and on time. Backup and Restore regularly copies your important files and settings to CD, DVD, external hard disk, network drive, or other data-storage device. Windows Live OneCare constantly thinks about your computer's safety and maintenance-so you don't have to. OneCare updates itself automatically to counteract new viruses and other threats and works with Microsoft Update to help ensure that your computer is up to date with the latest critical security updates from Microsoft.