Windows Live OneCare is an automatically self-updating PC care service that’s on whenever your PC is on, helping provide persistent protection against viruses, hackers, and other threats. It also performs regular tune-ups to help keep your PC running at top speed, and helps you back up important documents. 

• Runs quietly in the background, providing anti-virus, anti-spyware,  online identity and scam protection (anti-phishing) and firewall protection
• Updates itself to help you keep ahead of the latest threats
• Runs regular PC tune-ups, even checking for ways to shorten PC boot-up time
• Provides one-click solutions to most problems
• Makes backups a breeze
• Lets you see the status of all your computer systems at a glance

Download here-http://get.live.com/betas/onecare_betas

Looking too cool.

I installed it yesterday and the interface is really cool and simple.