Introducing Windows Live OneCare, the all-in-one, always-on PC care service from Microsoft
Introducing Windows Live OneCare, the all-in-one, always-on PC care service from Microsoft. 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. Because you have better things to do with your PC.

2.0 Beta Instructions: Hit the DOWNLOAD button, then transfer to your your computer the 2.0 Beta and run it. A special version of Windows Live OneCare (v1.6) will be installed on your computer. Within a few days your computer will be automatically updated to Windows Live OneCare Beta (v2.0)!